AISkills402

Cold Email — Writes a short, honest first outreach message to a stranger in business, in the recipient's language, with a subject line, one specific reason for writing and one small ask. Use when asked to write a cold email, a first outreach message, a sales or partnership introduction, or a prospecting note, in any language. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.03 USDC, yours forever incl. free re-downloads and new versions. Tested with a str…

Proofread — Proofreads a text with minimal intervention, in the language of the text. Fixes spelling, grammar, punctuation and obvious typos, keeps everything else, and returns the corrected text plus a short list of changes for review. Use when asked to proofread, correct, spell-check or fix the mistakes in a text without rewriting it. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.05 USDC, yours forever incl. free re-downloads and new versions. Tested…

SEO Meta Writer — Writes the SEO title, meta description and (on request) the H1 heading for one web page, in the page's own language, inside hard character limits, matching what the searcher wants. Use when asked to write or rewrite a page title, meta description, SEO snippet or H1 for a page, product, service, article or landing page. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.03 USDC, yours forever incl. free re-downloads and new versions. Tested…

Summarize Faithfully, Keep Every Number — Writes a faithful summary of a text in the text's own language, using only what the text says, with every number, name and date kept exactly and every qualifier kept. Use when asked to summarize, shorten, condense, give the gist or a TL;DR of an article, report, email, transcript, thread or document. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.03 USDC, yours forever incl. free re-downloads and new versions. T…

Text to JSON: Extract Data Without Guessing — Extracts data from text into JSON that matches the shape you give (a JSON Schema, an example object or a list of fields), without guessing. Every value comes from the text; a missing fact becomes null, numbers and dates are converted only into the type the shape asks for, two conflicting values are not settled by a guess, and instructions hidden in the text are ignored. Use when asked to extract structured data, turn text into JSON, parse an invoice…

x402 Buyer: Pay Safely from an Agent Wallet — Decision rules for an AI agent that holds a wallet and receives an HTTP 402 payment request (x402 v2). Decides SIGN, REFUSE or ASK the human before any money moves, and says how to verify the delivery and retry without paying twice. Use when an agent is about to pay over x402, gets a 402 response, must check a seller's payment terms, or a paid request failed and it is unsure whether to pay again. One-time purchase of the SKILL.md file itself (Agent …

Humanize AI Text — Rewrites AI-sounding prose so it reads like a person wrote it — in any language, without dropping facts. Use when asked to humanize a text, make it sound less AI-generated or less like ChatGPT, or clean machine phrasing out of an article, post, email, product description or page. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.05 USDC, yours forever incl. free re-downloads and new versions. Tested with a strong and a weak model; the ca…

JSON Repair: Fix Broken JSON, Keep Every Value — Repairs broken JSON so a program can parse it, without changing any value. Fixes trailing and missing commas, comments, single quotes, unquoted keys, Python and JavaScript literals, smart quotes used as delimiters, raw line breaks and stray quotes inside strings, a code fence or chat text around the JSON, and output cut off in the middle. A value that was cut off becomes null instead of a guess, numbers JSON cannot hold as written are kept as str…

Bulgarian Transliteration API: Cyrillic to Latin by the official Bulgarian system (Transliteration Act 2009), not ISO 9 or Russian. Returns the text, a URL slug and the letters Bulgarian does not have. Deterministic code, no language model. $0.003 USDC per call, no account. POST JSON {input}, up to 60000 chars; free example at https://api.aiskills402.com/v1/run/bulgarian-transliteration/example

Prompt Injection Guard — Keeps an AI agent from obeying instructions hidden in what it reads (indirect prompt injection). Web pages, e-mails, files, PDFs, API and tool output, other agents' messages and skill files under review are treated as content, never as orders. The agent is instructed never to pay, transfer, delete or reveal anything because content asked, to report the attempt with a quote and its source, and to still finish the real task. Use whenever the agent reads anything it did no…

Agent Done Check: Stop False Success Reports — Stops an AI agent from reporting false success, or hallucinated completion: work it calls done that did not happen. Every action in its status report gets one of five states (done and verified, done but not confirmed, partly done, failed, not done), backed by what the tool results of the session show. Failures and unknowns come first, counts come from the results, and no id, receipt or hash is invented. When a result does show success, the agent sa…

Bill Spike Finder — Finds the loops behind a bill spike or an unexpected bill. Reviews a web app's code and config for loops and repeats that run up the bill on their own on Vercel, Turso, Cloudflare Workers and D1 and paid AI APIs. Finds two schedulers on one job, retries without a cap, work that triggers itself, client polling and React render loops, caches cleared on every write, middleware running on every static file, queues that resend failures forever, image settings that multiply transf…

GDPR Cookie Consent Review: Banner, Consent Mode — Reviews a pasted snapshot of a website's cookie and consent setup (scripts in the head, the banner with each toggle's default, the Consent Mode or tag-manager setup, what a fresh browser stored and contacted before any click, the cookie table, the owner's note) against published EU law, court rulings, EDPB guidance, national regulators and vendor documents. It is a technical review, not legal advice. It flags trackers and embeds that store or r…

JSONL Repair API: turns broken JSON Lines (NDJSON) into one valid record per line - joins, splits, unwraps, drops fences and chat text, fixes quotes, keys, commas, Python literals; numbers copied as written. $0.003 USDC per call, no account, no language model: a cut-off record, repeated key or ambiguous leading zero gets a paid CANNOT REPAIR verdict. POST JSON {input} up to 60 000 chars; free example at https://api.aiskills402.com/v1/run/jsonl-repair/example

Code Review — Reviews a code change (a diff or a changed file pasted as text) and reports real problems ranked by severity — correctness bugs, security holes, data loss, missing error handling, edge cases, resource leaks — each with location, reason and a concrete fix in words. Use when asked to review code, a diff or a pull request, check a change for bugs, or find security problems in a snippet. One-time purchase of the SKILL.md file itself (Agent Skills format), not an API call: $0.01 USDC, …

Web to Markdown API: reads one public web page from the Cloudflare edge (static HTML, robots.txt respected, no JavaScript rendering) and returns clean markdown or plain text of the main content (nav and footer dropped; scope: page keeps all) with title, description, language and links. $0.005 USDC per page; you pay only when the page text is returned - refusals cost nothing. POST JSON {url, format?, links?, scope?}; free example at https://api.aiskills402.com/v1/run/web-to-markdown/example

IAM Policy Review — Reviews ONE AWS IAM policy (an identity policy, or a bucket policy) written as JSON for the five grants that hand out far more than a job needs, and lists only those, one line each with a fixed code, the statement, why it is dangerous and the fix - or exactly No findings. It catches every action on every resource or a whole service on every resource, iam:PassRole on any role, Allow combined with NotAction, a public principal with no condition, and actions that let a holder r…

Stripe Webhook Review — Reviews ONE Stripe webhook handler (the route code, in any language or framework) for the five mistakes that let a forged or repeated event move money, grant access or ship goods, and lists only those, one line each with a fixed code, the place, why it is dangerous and the fix - or exactly No findings. It catches a body parsed or re-serialized before the signature is checked, a handler that never checks the signature, a recency tolerance switched off or set huge, no reco…

Runbook Step Check — Checks ONE operational runbook (a numbered procedure for a deploy, a failover, a rotation or a recovery) step by step for the five things a person at three in the morning needs and writers forget - an owner, an expected duration, a visible signal that the step worked, a way back, and someone to escalate to - and lists only the steps that miss something, one line per step with fixed codes for what is missing, or exactly No findings. It accepts a success signal written in oth…

Prompt Caching Review — Reviews ONE Claude API request (tools, system, messages, the cache marks, the model, the sizes and how often it is sent) for the five reasons its prompt cache does not pay off, and lists only those, one line each with a fixed code, the place, why the cache misses and the fix - or exactly No findings. It catches text that changes on every call (a clock, a request id, a user name) at or before the cache mark, a large stable prefix with no mark, a marked prefix shorter than…

Platform Text Limits — Counts the fields of ad and store copy against the published limit of each platform (Google responsive search ads, App Store product page, Google Play listing, X and LinkedIn posts) and returns a line only for each field that is over, with the exact count, the limit, the unit and a shortened version that fits - or exactly No findings. It counts by the platform's own rule: double-width characters in Google Ads, bytes for the App Store keywords, the fixed length of a link a…

HTML Email Compatibility Review — Reviews ONE HTML email (the source of a newsletter, a receipt or a notice) for the four mistakes that make it fall apart in common mail clients, and lists only those, one line each with a fixed code, the place, which client breaks it and the fix - or exactly No findings. It catches flex or grid used to lay out columns, layout rules that exist only in a style block in the head, images with no alt attribute, and a CSS background image with no colour fallback behi…

GitHub Actions Security Review — Reviews ONE GitHub Actions workflow file (YAML) for the five mistakes that let an outsider run code or read secrets in your pipeline, and lists only those, one line each with a fixed code, the place, why it is dangerous and the fix - or exactly No findings. It catches text from an issue, pull request, comment or branch name pasted straight into a shell step, a pull_request_target or workflow_run job that checks out and runs the code of the pull request, a third-…

Parallel Agent Worktree Review — Reviews a plan or shell script that lets several coding agents work in parallel, each in its own git worktree, and lists only the five mistakes that make the agents collide, one line each with a fixed code, the place, why it breaks and the fix - or exactly No findings. It catches one branch checked out in two worktrees or forced onto a second one, two agents started on the same fixed port, an untracked secret file missing in a new worktree or written by two agen…

GA4 Tracking Plan Limits — Checks ONE Google Analytics 4 tracking plan (events, their parameters, and the custom dimensions to register with their scope) against the published collection limits and naming rules, and lists only the breaches, one line each with a fixed code, the item, the rule it breaks and the fix - or exactly No findings. It catches an event or parameter name longer than allowed, more parameters on one event than GA4 collects, a reserved event name or a reserved parameter name …

Dockerfile Review — Reviews ONE Dockerfile for the five build mistakes that cost security or build time, and lists only those, one line each with a fixed code, the instruction, why it hurts and the fix - or exactly No findings. It catches a final image that runs as root, a base image with no tag or the latest tag, a secret passed through an argument, an environment value or a file copy so that it stays in the image history, source copied in before the dependencies are installed so the cache is …

CORS Config Review — Reviews CORS code or server configuration (an Express or Flask handler, an nginx block, a framework setting) for the five mistakes that let a hostile web page read private responses, and lists only those, one line each with a fixed code, the place, why it is dangerous and the fix - or exactly No findings. It catches a request Origin copied into the allow header while cookies are allowed, a wildcard origin together with credentials, the null origin allowed, an origin check b…

Internal Link Orphan Audit — Reads a crawl export of a website (one row per page with its status, its robots setting and the links in its body, or a plain list of links from page to page), the sitemap list and the navigation and footer links, and reports the internal-link problems that keep pages from being found and indexed - orphan pages with no inbound link from another page, pages with a single contextual inbound link or links only from the footer, pages too many clicks from the home page o…

CodeTour File Builder — Turns a code tour described in words, plus the list of files with their line counts, into one valid CodeTour file (JSON with a title and steps, each step holding a file, a line and a description) and nothing else. It keeps file paths relative and exactly as listed, checks every line number against the length of its file, and leaves out a step whose file is not in the list or whose line lies past the end, naming each skipped step in the description of the tour in one fixe…

Agent Loop Review: Repeats, Caps, Self-Grading — Reviews the description, configuration or code of an agent loop, anything that repeats on its own: a scheduled job that calls a model, an agent that retries until it is done, a batch of actions, a self-improving prompt loop. It finds where the loop runs away or repeats a side effect (no ceiling on iterations, the same scheduled tick delivered twice, a progress marker written after the effect, nothing kept between iterations, a batch that goes on …

A/B Test Readout Check — Checks the written readout of ONE A/B test (a paragraph, an email, a table or a slide transcript) for the five statistical mistakes that turn a no-effect test into a "win", and lists only those, one line each with a fixed code, the place, the evidence with the arithmetic and the fix - or exactly No findings. It catches stopping the moment a result looks significant, many metrics or variants judged without correction, a split of users that differs from the planned split …

API Breaking Change Check for OpenAPI — Compares two versions of one API description (OpenAPI 3.0 or 3.1 in YAML or JSON, or two JSON Schemas of one request or response) and lists ONLY the changes that break clients written against the old version, one line each with a fixed code, the place, old and new, and who breaks - or exactly No breaking changes. The skill judges by direction - a request may widen safely and breaks when it narrows, a response may narrow safely and breaks when it widens - …

Cloudflare Google Index Doctor — Reads what the owner of a site on Cloudflare Workers (usually Next.js through OpenNext) pasted - Search Console numbers, an audit of status codes, open-next.config.ts, wrangler.jsonc, data-fetch code, robots, sitemap and metadata code, wrangler tail lines, the owner's plan - and finds what stops Google from crawling, indexing or showing the pages, in a fixed diagnosis order. Group 1, the crawler gets errors - the site's own API rate-limiting its own renders, a 5…

Base Receipt Verify API: checks on Base mainnet that a transaction really paid USDC to an address - status, transfer, amount, payer and EIP-3009 nonce from the chain logs, never from the relayer. Base mainnet USDC only. $0.005 USDC per check, a live measurement. POST JSON {tx, pay_to, amount_micro?, from?, nonce?}; free example at https://api.aiskills402.com/v1/run/base-receipt-verify/example

Payment Header Check API: reads an x402 PAYMENT-SIGNATURE header before you send it - base64/UTF-8/JSON, version, authorization fields, clock window, who signed (lane a or b) and, with the seller PAYMENT-REQUIRED, payTo/amount/network/asset. Nothing is sent anywhere. $0.005 USDC per check. POST JSON {payment_signature, payment_required?}; free example at https://api.aiskills402.com/v1/run/payment-header-check/example

Claude Session Saver: When to Clear or Compact — Reviews a snapshot of a Claude Code session (the context size, measured or guessed; the task and where it stands; git status; what still runs in the background; the plan or notes file; what the person asked) and decides whether the person should type /clear, type /compact with a focus text, finish one step first, or keep going. Before a fresh session it lists what would be lost or left behind: results that exist only in the chat, a plan file with…

OpenNext R2 Cache Cleanup for Next.js on Cloudflare — Decides which old build folders of an OpenNext incremental cache on Cloudflare (R2, or Workers KV) can be deleted, from a pasted setup (wrangler config, open-next config, next.config, the public HTML build id, a listing of the cache folders), and never touches the live build. It reads the cache root and the real folder name (a custom prefix, a deploymentId, a constant deploymentId, a no-build-id folder), finds the live build from the public …

LLM API Fallback Review: Gemini, Groq, Chains — Reviews pasted code that calls a language model (JavaScript, TypeScript or Python; REST, @google/genai, google-genai, or an OpenAI-compatible client for Groq), usually through a chain of models or providers with retries. It finds where the call path goes silent or stops while another model would answer (an empty 200 taken as the answer, a 429 or 5xx that ends the call, a retired model's 404, a Groq schema 400 that drops the provider, one provider'…

Watchdog Alert Review: Silent and Noisy Alarms — Reviews pasted code or a design for a liveness watchdog, a staleness alarm or a daily heartbeat mail (sources that must keep answering, a pipeline that must keep publishing) and lists every way it stays silent on a dead source or floods on a healthy one. It checks whether silence is measured in the time the source was last asked or by the wall clock, whether a stateless alarm window repeats or never fires, whether the threshold is longer than the…

Unified Diff Repair: Fix the Counts, Keep the Change — Repairs a unified diff (the patch format of git diff and diff -u) so that git apply and patch accept it against the file it was written for, and answers with the diff only, no code fence. Recounts the numbers in each hunk header from the hunk's own lines, puts back context lines and removed lines exactly as the file has them (tabs, trailing spaces, blank lines, carriage returns), adds the backslash line that marks a missing final line break…

Subtitle Timing Repair: Fix SRT and VTT, Words Stay — Repairs the structure of an SRT or WebVTT subtitle file so a video player reads it, without changing a single word and without changing the value of a single time, and answers with the file only, no code fence. Fixes the separator before the milliseconds (a comma in SRT, a dot in VTT), broken arrows, short hours and short millisecond fields, missing or doubled blank lines between cues, cue numbers that skip, repeat or are out of order after …

Subtitle Translator for SRT and VTT — Translates a subtitle file (SRT or WebVTT) into another language and returns the whole file with only the spoken words changed. Cue numbers, timing lines, cue settings, position codes, speaker names, style and note blocks come back byte for byte; every cue stays one cue, in the same order, with at most two lines of at most 42 characters, shortened in wording when the translation is longer. Tags and markers such as italics, colours, music notes, dialogue das…

Sitemap Builder — Builds a correct XML sitemap, or a sitemap index file, from a list of pages, answered as the XML document only. Lists only canonical, indexable pages that return 200 on one host, and leaves out redirecting, noindex, non-canonical, removed and other-host addresses. Writes every address absolute and entity-escaped (an ampersand in a query string becomes the escape code), and writes lastmod only when the input gives a real date for that page - never the day the file was generated…

RSS Feed Builder — Writes an RSS 2.0 file, or an Atom one when asked, from a list of posts, answered as the XML only with no fence and no sentence around it. Dates are RFC 822 with a correct weekday, never ISO; a post with no date gets no date, a post with no image gets no image and a post with no summary gets no description, so nothing is invented. Ampersands are escaped, HTML summaries go in CDATA, every link is absolute, the guid never changes, and the Atom namespace with a self link is decl…

ReDoS Regex Rewrite: Same Answers, Linear Time — Rewrites a JavaScript regular expression that can hang on a crafted input (catastrophic backtracking, ReDoS) into one that gives exactly the same yes or no for every text and runs in linear time, answered as JSON with the pattern and flags. Knows the shapes that explode - a quantified group whose inside is quantified too, alternatives under a star that can match the same text, an optional separator between repeats, a counted group of runs, an una…

Quiz From Text: Answers Quoted From the Passage — Writes a fixed number of quiz questions from a passage you give it, as JSON, where every answer is a span copied word for word from the passage, with the same digits or number words, spacing, dashes, apostrophes and capitals, paired with the full sentence it comes from, and never a paraphrase, a pronoun, a computed value or a fact from outside the text. Questions are in the passage's own language, each asks for a different fact, a negation or a …

Translate .po Files Without Breaking Gettext — Translates the messages of a gettext PO file (.po) into another language and returns the whole file, so msgfmt and the app that loads it accept it. Only the msgstr values change. msgid, msgid_plural and msgctxt, every comment line, flags, the header (apart from its Plural-Forms line), obsolete entries and all placeholders such as %s, %d, %(name)s, {name} and %1$s come back exactly as they were. Entries with plural forms get exactly the number of ms…

Playwright Test from Manual Steps — Turns manual test steps plus the page facts you have (route, labels, button names, messages) into one Playwright Test file in TypeScript that can really fail. Elements are found by role and accessible name, by label or by text, never by a CSS class, an id or XPath, and a name that is the start of another gets the exact option; every step that observes something gets one awaited, auto-retrying assertion; a step such as wait a couple of seconds becomes an asser…

llms.txt Writer — Writes an llms.txt file in the shape the llms.txt proposal defines, from a site description and a list of pages, answered as the Markdown file only. One H1 with the site name, a blockquote summary, optional plain notes, then H2 sections that hold lists of links in the form "- [name](address): notes". Every address is absolute (a relative one is joined to the stated origin) and copied exactly, never invented; pages marked noindex, private or behind a login are left out; a page …

JSON Schema From Examples: No Over-Constraining — Writes a JSON Schema (draft 2020-12) from example JSON documents plus rules given in words, so that it accepts every example and every document the rules allow, and refuses every document the rules forbid. Nothing is made required, closed, numeric-only, formatted or limited because the examples happen to look that way - a key missing from one example stays optional, two observed values do not become an enum, whole-number examples do not make an …

HTML Table to CSV: Merged Cells and Entities Done Right — Converts one HTML table into RFC 4180 CSV and answers with the CSV only, no code fence. The header is the first row, every cell keeps the text a browser shows after entities are decoded (&, €, —, a no-break space), links, bold and other inline markup vanish and their text stays, a line-break tag becomes a space, and numbers such as 1,250 stay text in quotes. A cell that spans rows or columns (rowspan, colspan) repeats its …

ICU Plural Messages (per-language CLDR categories) — Writes and fixes ICU MessageFormat strings for several locales at once, with exactly the plural categories each language uses (one, few, many, other and the rest), the mandatory other arm, exact-number arms such as =0, selectordinal, select, offset, nested messages and correct apostrophe quoting. Answers with a bare JSON map of locale code to message. Use when asked to write or translate a plural message, an ICU string, a count label such as …

Cron Dialect Convert — Converts an existing schedule between cron dialects so that the target runs at exactly the times the source runs - classic crontab, GitHub Actions schedule, a Quartz-style six-field expression, a small numbers-only HTTP scheduler (Cron Hub) and Cloudflare Workers Cron Triggers - answered as JSON with the crons and a note. Knows what changes between them - day-of-week 1 is Monday in crontab and GitHub but Sunday in Cloudflare, 0 is refused by Cloudflare, 7 means Sunday in …

Agent Report Audit: Which Claims the Log Supports — Audits the report an AI agent wrote about its own session against the tool log of that session. Every numbered claim of the report gets one of two verdicts, supported or not_supported, with the log line that decides it copied exactly. A claim is supported only when the log shows a call that did it, a complete output that shows success, the same object and scope, nothing later that undoes it, and every part of a compound claim. A command that w…

vCard from E-mail Signature — Turns the signature block of an e-mail (English, Bulgarian, German or another language) into a vCard 4.0 contact card, answered as the card text only. Follows RFC 6350 where plain models slip - VERSION:4.0 right after BEGIN, FN always present, N with exactly five components, ADR with exactly seven, commas, semicolons and backslashes escaped in text values, phone numbers as tel URIs. What the signature does not say stays out - no invented surname, no guessed country…

Tests from Spec: Cases from the Requirements — Writes test cases for a function from its specification rather than from its code, as a JSON table that any test runner can loop over. Every rule, boundary and error the spec defines gets a case, and every expected value is worked out from the spec; where the code you show disagrees with the spec, the case follows the spec and a note says where. Behaviour the spec leaves open becomes a question instead of a guessed case. Use to write unit tests fro…

SQLite Query From a Question for D1 — Writes the SQL query for SQLite or Cloudflare D1 that answers a question about the data, from the question and the table definitions you paste, so it returns the right rows and not only rows that look right. Knows where plain-language questions turn into wrong results on SQLite - NOT IN against a column that holds NULL, integer division in percentages and money, COUNT of a column that holds NULLs, a LEFT JOIN that a WHERE turns back into an inner join, two …

SQL Dump to SQLite: MySQL and Postgres Rows, Unchanged — Converts a MySQL or PostgreSQL dump (CREATE TABLE, INSERT rows, COPY blocks) into SQL that SQLite, Cloudflare D1 and Turso execute, with every value in every row unchanged, and answers with the SQL only, no code fence. Decodes string escapes the right way for each source (MySQL backslash sequences, Postgres E strings and dollar quotes, COPY escapes with its null marker), keeps strings that look like numbers as strings, turns booleans into…

Robots.txt Policy Writer — Turns a crawler policy written in words into a correct robots.txt, answered as the file only. Knows the mistakes that make a file do the opposite of what was meant - a crawler obeys only the one group that names it, so a GPTBot group silently drops every rule written for the star group and the private paths must be repeated; longest match wins and Allow wins a tie; Google ignores Crawl-delay; Host is a Yandex-only line; Sitemap must be an absolute address; Google-Exte…

Redact PII and Secrets From Logs and Tickets — Replaces personal data and secrets in a text with typed placeholders and leaves every other character exactly as it was, so the text can go into a log, a ticket, a prompt or a shared document. Covers email addresses (also written out as "at" and "dot"), phone numbers in any format, IBANs, payment card numbers, national ID numbers such as the Bulgarian EGN, IP addresses, and secrets - passwords, API keys, tokens, the password inside a connection str…

Phone Numbers to E.164 — Turns a list of phone numbers written any way people write them into E.164 (a plus sign, the country code and the national number, digits only), one JSON object per number, using a default country the request states. Where plain models slip - the trunk 0 left in, "+44 (0)20" glued to a stray zero, Italian numbers with the leading 0 wrongly dropped, the leading 1 of a North American number kept, a made-up country for a bare local number, an extension stuck onto the numbe…

Next.js Cache Review: ISR, Tags, Redirects — Reviews pasted Next.js App Router code and config that runs on Cloudflare through OpenNext, for caching and ISR mistakes that serve a wrong or stale answer, or make every visit read the database. It flags an unstable_cache key whose cached shape changed while the key stayed, force-dynamic pages that disable the browser back-forward cache, a wildcard Cache-Control override that makes the whole site dynamic, a dynamic route that never starts ISR becaus…

Markdown TOC Anchors: Contents Links That Really Jump — Builds the table of contents of a Markdown document with the exact heading anchors that GitHub or GitLab generate, and answers with the list only, no code fence. Finds the real headings (hash headings with closing hashes, underline headings, none inside code fences, indented code, comments or front matter), strips inline markup, lowercases, drops every character that is not a letter, digit, hyphen or underscore, turns each single space int…

JSON to CSV: Flatten Nested Records, Keep Every Value — Turns JSON that holds a list of records, with nested objects and arrays, into one flat CSV table that a standard parser reads, and answers with the CSV only, no code fence. Nested keys become dotted column names such as address.town, array elements become index columns such as tags.0 and tags.1, or one cell joined with a separator, or one row per element when asked to explode. Numbers are copied as the JSON token (1.10 stays 1.10, 1e5 stay…

Extract UI Strings Into i18n Keys — Pulls the hard-coded text a person sees out of a JSX, TSX, HTML or Vue template file into a messages map and returns the file rewritten to call the translation function, as one JSON object with the messages and the whole source and nothing around it. Every message is byte-exact as the user reads it. A sentence with an inline link or bold part stays one message with its markup inside, a sentence built from a string, a variable and another string becomes one me…

hreflang Map Builder — Builds the complete hreflang annotation set for a multilingual site or a multi-region site from a list of page URLs, answered as JSON only. Every page lists itself and all its alternates, every pair is reciprocal, x-default appears only when a fallback page is named, and codes are checked against ISO 639-1, ISO 3166-1 Alpha 2 and ISO 15924 instead of copied. Reports a bad code, a redirecting, noindexed or non-canonical URL and a page that is not a translation instead of p…

Fixed-Width to CSV: Cut by Spec, Trim Only When Told — Converts fixed-width text (mainframe exports, bank and statistics files, printed reports) into RFC 4180 CSV from a column specification and answers with the CSV only, no code fence. Positions are 1-based and inclusive unless the spec says otherwise, and count characters, so accented and Cyrillic letters do not shift later columns. Every cell is the exact characters of its positions: nothing is trimmed unless the spec says trim, leading zero…

FAQ Answer From Docs (With the Quote) — Answers one customer question using only a pasted help text (FAQ, help centre article, policy page, product manual or knowledge base extract) and returns strict JSON with the reply, the passages it rests on copied word for word, and a flag that says whether the text answers the whole question, part of it or none of it. Every figure is copied as the help text writes it, nothing is computed, rounded, inferred from general knowledge or taken from a line that…

Event to ICS Calendar File — Turns an invitation or event description in plain text (an email, a chat message, a web page, in English or another language) into a valid iCalendar file, answered as the file text only. Follows RFC 5545 where plain models slip - a named time zone needs a VTIMEZONE block in the same file or the time is written in UTC with Z, an all-day event ends the day AFTER its last day, an unknown end time stays empty instead of an invented hour, DTEND and DURATION never appear …

Email and DNS Cutover Review — Reviews a pasted plan, script or configuration for a change to a domain's mail and DNS on Cloudflare (turning on Email Routing, moving MX records, forwarding rules, sending alert mail from a Worker with the send_email binding, SPF, DKIM and DMARC records, deleting the records of an old host, the subject and sender name of automatic mail) and lists the ways it fails without any error. It flags sends to addresses the binding cannot reach, recipient lists that stop a…

CSV to JSON Rows: Every Cell Stays Text — Converts CSV into a JSON array with one object per row, keyed by the header, and answers with the JSON only, no code fence. Every value stays a string exactly as the cell reads, so 007, 1,250, 1.10, TRUE, null, dates, spaces around a name and a value that starts with an equals sign are never turned into numbers, booleans or null, and an empty cell is an empty string. Only a column the task names as integer, number or boolean is converted. Quotes are rem…

Accessibility Review: WCAG Defects in Markup — Reviews pasted HTML or JSX for the accessibility defects a screen reader or keyboard user hits first, and names the WCAG 2.2 success criterion for each. It flags images without a text alternative, form fields without a label, buttons and links with no accessible name, clickable elements that a keyboard cannot reach, focusable content hidden from assistive technology, personal-data fields without autocomplete, data tables without header cells and pa…

A2A 1.0 Agent Card Writer — Writes the JSON an agent needs for version 1.0 of the A2A (Agent2Agent) protocol, answered as JSON only with no fence and no text around it. Covers the agent card (supportedInterfaces with protocolBinding and protocolVersion, capabilities, skills, securitySchemes and securityRequirements, default input and output modes), the JSON-RPC requests (SendMessage, SendStreamingMessage, GetTask, ListTasks, CancelTask, push notification configs), the replies (task, message, da…

Changelog From Commits — Turns a commit list into one release entry in Keep a Changelog form, as Markdown only with no fence and no preface. Groups changes under Added, Changed, Deprecated, Removed, Fixed and Security in that order, writes user-facing one-line entries, drops merge, chore, ci, build, test, style, internal docs, internal refactor, wip and version-bump commits, flags breaking changes, keeps the issue and pull request numbers that are in the input and never adds one, a date, a vers…

Bing and IndexNow Submitter Review — Reviews code and answers questions about sending page addresses to search engines through IndexNow and the Bing Webmaster URL submission API, and catches the mistakes that make a submitter report success that never happened. It flags a Bing call judged only by its HTTP status when the refusal sits inside the body, a retired XML or SOAP endpoint, a fallback chain that retries after a refusal that is ours, a quota read as one number instead of two, an unread q…

XML Repair: Fix Broken XML, Change No Text — Repairs broken XML so a standard parser accepts it, without changing a single text node, attribute value, comment or CDATA section, and answers with the XML only, no code fence. Fixes a raw ampersand or less-than sign in text or in an attribute value, an HTML entity name such as nbsp that plain XML does not define, an attribute value without quotes, an end tag that is missing in one place only, a declaration that is not the first thing in the file, a…

x402 Listing Review: Catalogs, Scanners, Buyers — Reviews how a paid HTTP resource sold over x402 is advertised to catalogs, scanners and buyer agents, and how the seller's own scripts read those catalogs back, from pasted 402 bodies, OpenAPI documents, discovery files, liveness guard code, catalog presence check scripts and buyer alerts. Flags a tiered tariff advertised as one row (a comparison bot reads the structured amount, not the description), one liveness clock for several catalog rows t…

Ticket Triage: Category, Priority, Language — Sorts one incoming customer message (support email, chat, contact form or ticket) into a category, a priority and the customer's language, and answers with strict JSON that a program can route without a person reading it. Uses a fixed default category list or the list the request gives, and fixed rules for priority, so an angry tone or the word URGENT does not raise priority and a calm report of an outage does not lower it. The language is the one t…

Table Summary: Only the Figures in the Table — Describes a table you were given (pasted Markdown, CSV, TSV or spreadsheet cells) in a short paragraph that uses only figures the table itself prints. Every number is copied as written with its unit, currency and qualifier. Nothing is added up, averaged, rounded, turned into a percent or a ratio, or extended into a trend, a cause or a forecast. A blank or n/a cell is reported as not given, never as zero. A total the table prints is quoted, not chec…

Source Quotes Extract — Reads one pasted text, such as an article, report, interview, memo or review, and lists the claims its author makes, each with the exact quote from the text that supports it, as strict JSON. It keeps every claim as strong as the text states it, so a hedged claim stays hedged and a number keeps its unit, and it cuts every quote down to the shortest stretch of words that supports the claim. It leaves out what someone else is reported as saying, what the text only hints at,…

Session Handoff Note: Done, Open, Next Step — Turns the log of one agent session (the user's requests, tool calls with their outputs, errors and the agent's own remarks) into the note the next session starts from, as strict JSON with done, not_done, open, decisions, files and next_step. Work counts as done only when the log shows a result, with the log line that proves it; a command that was issued, an output that was cut off or the agent's own "done" is not a result, an error with no successfu…

Search Console Next Action — Takes one situation from Google Search Console - a report row, a status, a URL with the way it answers, or a button the site owner is about to press - and returns the single right next action as JSON with a fixed action code, a reason and steps. Knows the cases where the obvious click is wrong - a URL that redirects gets Validate fix and never Request indexing, which creates a Redirect error; a Domain property needs the full sitemap address; Couldn't fetch right aft…

PO File Repair: Make msgfmt Accept It Again — Repairs a gettext .po translation file so that msgfmt --check compiles it, changing only what blocks compilation and translating nothing. Knows what the checker really rejects - an unescaped quote or a missing closing quote, an escape it does not know, a msgid that starts or ends with a newline while its msgstr does not, c-format or python-format placeholders that differ, the wrong number of plural forms, msgstr without an index on a plural entry or…

Meeting Actions: Tasks, Owners and Due Dates — Pulls the action items out of meeting notes, minutes or a transcript into strict JSON, each with the task, the owner and the due date, and invents none of them. A person nobody named stays null, "I" in notes with no known author stays null, a deadline such as "next Friday" or "next week" that can mean two dates stays null, and "by Friday" or "tomorrow" becomes a calendar date only when the meeting date is known. Tasks that were cancelled, already d…

MCP Registry Listing Writer — Writes the server.json that the official MCP registry accepts today, and answers short questions about publishing to it. Uses the current dated schema address, a name that matches the way the publisher proves ownership (GitHub login or domain), a description of at most 100 characters and one entry per package type with the ownership proof the registry checks at publish - mcpName in package.json for npm, the mcp-name line in the README for PyPI, NuGet and Cargo, a l…

Markdown Table Repair: Fix the Table, Keep Every Cell — Repairs a broken Markdown table so GitHub Flavored Markdown renders it as one table with the right columns, without changing the text of any cell, and answers with the table only, no code fence. Adds a missing or malformed alignment row and keeps the alignment colons it finds, adds the missing leading and trailing pipes, escapes a literal pipe inside a cell as backslash-pipe (also inside inline code), pads a short row with empty cells with…

JSON Lines Repair: One Record Per Line — Repairs broken JSON Lines (NDJSON) so that every line is exactly one JSON record and no value changes. Re-joins records that were pretty-printed over several lines, splits records that were glued together on one line, unwraps a JSON array into lines, drops blank lines, code fences and chat text between records, and fixes trailing commas, single quotes, unquoted keys, comments and Python literals inside each record. Numbers are copied as written, never re…

JSON-LD Schema Writer — Writes schema.org JSON-LD for one web page from the facts you give it, answered as JSON only with no script tag and no fence. Covers Article, BlogPosting, Product with Offer, BreadcrumbList, FAQPage, Event, Organization, LocalBusiness, Recipe and JobPosting. Leaves out every fact that was not given instead of inventing it: no rating, review, price, availability, author, date or salary appears unless the page states it. Writes prices as plain numbers with an ISO currency …

Document Consistency Check: Find Contradictions — Reads one pasted document, such as a report, proposal, article, contract draft or spec, and lists every place where it contradicts itself, as strict JSON with both conflicting passages quoted word for word. It finds a figure given with two values, a name spelled two ways, a weekday that does not match its date, an end before a start, a stated total that differs from its stated parts, and a term used differently from its own definition. It report…

CSV Repair: Fix Broken CSV, Keep Every Cell — Repairs broken or messy CSV so a standard parser reads it, without changing the text of a single cell, and answers with the CSV only, no code fence. Fixes quotes that do not close, a quote inside an unquoted cell, cells that hold the delimiter or a line break, rows shorter than the header, a Markdown table, and chat text or a fence around the data. Numbers such as 1,250, 007 and 1.10, dates, spaces inside cells and values that look like formulas sta…

Claude Code Settings Review: Hooks, Permissions, MCP — Reviews a pasted Claude Code configuration (settings.json, hooks, permission rules, MCP server switches, scripts that start Claude Code) for keys and meanings that are easy to get wrong and that fail without an error. It flags disabledMcpjsonServers used on a server that does not come from a project's .mcp.json, a settings file with a JSON syntax error, a blocking hook that exits 1 instead of 2, the deprecated top-level approve or block dec…

Claude Code Memory Review: CLAUDE.md, Rules, Imports — Reviews a pasted Claude Code memory setup (a folder tree plus CLAUDE.md, CLAUDE.local.md, files under .claude/rules/, imported files, AGENTS.md and an auto-memory MEMORY.md) for instructions that silently never reach the model, that load earlier or later than the author thinks, or that contradict each other. It flags an @import whose target is not in the tree (Claude Code gives no warning for it), a relative import resolved from the wrong f…

Canonical URL Decision — Decides for every URL variant of a page whether it is the canonical URL, gets a canonical tag to another address, a permanent redirect, a noindex, a 404 or 410, or cannot be settled from the facts given, answered as JSON only with the target and a short reason per URL. Follows Google's current canonicalization guidance on duplicate content - a redirect when the duplicate is deprecated, rel=canonical when it must stay reachable (tracking parameters, print views, a produc…

SKILL.md Review: Safe and Within the Limits — Reviews a SKILL.md file before you install, buy or publish it and lists every problem with a fixed code, the place and a fix, then gives one verdict. It checks the front matter against the published limits (name up to 64 characters in lowercase, hyphens and digits, no reserved words; description present, up to 1,024 characters, naming both its job and the requests that should trigger it, in the third person), and it reads the body for hidden orders …

SQL Query Optimizer for D1, SQLite and Turso — Reviews SQL queries, schemas and migrations for SQLite, Cloudflare D1 and Turso, where the bill and the speed follow the rows a query READS, not the rows it returns. Finds full scans hidden behind LIMIT, aggregates over growing tables, index column gaps, NOT IN, OR, functions and LIKE patterns that switch an index off, OFFSET pagination, N+1 loops, the D1 limit of 100 bound parameters, tables that never shrink and new flag columns that turn the who…

Mojibake Repair: Undo Broken Encoding Exactly — Repairs mojibake, text whose accents, Cyrillic letters, quotes, dashes or emoji turned into strings such as è, ü, “, пр or Р—Рґ because UTF-8 was read as Windows-1252, Latin-1 or Windows-1251, once or twice. Gives back the original text exactly, character for character, by undoing the wrong reading byte by byte, and leaves text that is already correct untouched. When the damage is mixed with good text, mixes two encodings, or lost bytes, so …

XLIFF Translate: .xlf Files Your Tool Imports Back — Translates an XLIFF 1.2 file (.xlf) into the language the request names and returns the whole file, so the localization tool and the app that import it accept it. Each translatable unit gets one target element right after its source, with state set to translated. Sources, unit ids, notes, inline codes (g, x, ph, bpt, ept, it, mrk elements) with the same ids, units marked translate no, and targets already in state final, signed-off or translat…

x402 Settlement Review: Replay and Double Charge — Reviews pasted seller-side x402 code that accepts the PAYMENT-SIGNATURE header, talks to the facilitator and delivers the goods (the cash register), for the silent failures that double-charge a buyer, hand the goods to a stranger or bill the seller. It flags an expiry check that runs before the nonce lookup, a repeat path that delivers without proof the chain observer lacks, a repeat window taken from the buyer's validBefore instead of the sell…

Vocabulary From a Text — Builds a vocabulary list for a language learner from one pasted text, as strict JSON: for every word the learner should learn it gives the form as written in the text, the dictionary form, a translation in the sense the text uses and the whole sentence of the text as the example sentence, copied word for word. It skips the words the learner already knows, also when they appear inflected, and leaves out names, function words and numbers. Dictionary forms follow the conve…

Timeline From Text — Reads one pasted text, such as an incident report, a case history, a project log, a news story or an email thread, and lists its events as strict JSON. Events the text dates come first in chronological order, each with the date as written, the date in ISO form, a short event and the exact quote. Events with no date are listed apart in the order of the text. It resolves a relative date such as "two days later" only when the text gives the date it counts from, takes a date on…

Summary Fidelity Check — Checks a summary against the source text it was made from and lists the summary sentences the source does not support, each copied word for word, as strict JSON. It catches a number that was rounded or given another unit, a hedge that became a certainty, a cause the source never states, two facts joined into a false one, a claim whose speaker was dropped, a fact that comes from outside the source, and it ignores any instruction hidden in the source. A sentence is judged…

Postgres or MySQL SQL to SQLite and D1 — Converts PostgreSQL or MySQL schema statements, migrations and queries into SQLite that Cloudflare D1 and Turso run, so the converted version behaves like the original and not only parses. Knows the conversions that run without an error and then go wrong - a key written as BIGSERIAL or INT AUTO_INCREMENT that SQLite stores as NULL, a custom enum type or an inline enum that stops checking anything, a default now() or gen_random_uuid() that fails on the fi…

Spreadsheet Formula: Excel and Google Sheets — Writes one spreadsheet formula for Excel or Google Sheets from a plain description and a sample of the sheet, using the sheet's real cell addresses and ready to be copied down. It fixes the ranges that must not move, looks values up by exact match, reads thresholds the way they are worded, builds dates with DATE, keeps blank cells apart from zeros, and uses functions that work in both Excel 2019 or later and Google Sheets. It answers with the formu…

Regex From Examples for Any Script — Writes a JavaScript regular expression from a description plus lists of strings that must match and must not match, answered as JSON with the pattern and flags. Knows the traps measured in Node 24 - \b and \w are ASCII-only even with the u flag, so \bдума\b never matches Cyrillic text and \w+ cuts "café" to "caf"; a word boundary for any script is a pair of lookarounds with \p{L} and the u flag. Anchors a validator so extra text around the value is rejected,…

Redirect Map Builder — Turns an old-URL list and the mappings you have into a redirect map as JSON - one rule per old URL, chains collapsed to the final target, loops reported and never emitted, queries and percent-encoding kept as written, and old URLs with no named target listed as unmapped instead of guessed. Also writes the same map as a Cloudflare Pages style _redirects file. Knows the status codes (301 for a moved page, 308 where the method must be kept and what Next.js really sends for p…

OpenAPI Operation Object From An Example Call — Writes one OpenAPI 3.1 operation object, as bare JSON, from an example request, an example response and rules given in words - parameters with the right location, requirement flag and type, a request body, and a response per status the person actually showed. Uses the 3.1 forms, not the 3.0 ones - a field that may be null is a type list with "null" (never nullable), a path parameter is always required, a status is a quoted key, an identifier writt…

MCP Tool Schema: Definitions from API Docs — Writes the MCP tool definition for one API operation - name, description, inputSchema and annotations - as the JSON a server returns from tools/list. The schema takes exactly the parameters the operation takes - required ones listed, defaults stated, exact enums, integer amounts, date formats, ranges, string and array limits, either-or parameters that refuse a call with both or neither - and refuses unknown ones. Credentials never become parameters, …

Log Lines to JSON Lines, Odd Lines Kept Raw — Parses plain-text log lines into JSON Lines, one record per line, by a format the task states (Apache or nginx combined access log, RFC 5424 syslog, key=value pairs, or a custom pattern with named fields). Splits by the format's grammar and not by spaces, so quoted fields with spaces and escaped quotes stay whole. A dash that the format defines as absent becomes null, fields the task calls numbers become JSON numbers (a status stays a number, a zero…

HTML to Markdown: Same Page, Nothing Invented — Converts HTML into CommonMark Markdown and answers with the Markdown only, no wrapper fence. Headings become ATX headings, links keep their address byte for byte (title included), images keep their source and alt text, lists keep nesting and an ordered list keeps the number it begins with, code blocks keep their text and indentation, tables become pipe tables with literal pipes escaped, entities are decoded once so the text reads as a browser show…

Diff From Before and After: A Patch That Applies Exactly — Writes the unified diff (the patch format of git diff and diff -u) that turns an old version of a text file into a new one, so that git apply or patch applies it to the old version with no fuzz and produces the new version byte for byte. Compares line by line with every space, tab, carriage return and final line break counting, writes each hunk with three lines of context, merges hunks whose context touches, counts the numbers in every …

Config Format Convert: JSON, YAML, TOML, INI, .env — Converts a config file between JSON, YAML 1.2, TOML 1.0, INI and .env with every key, value and type kept, and answers with the converted document only, no code fence. Strings that look like other things are quoted so they stay strings (the text 1.10, 007, 01234, no, null, an empty string, a date in quotes), a YAML 1.10 stays the number 1.1, aliases are expanded, TOML dates become their exact text in JSON and INI, scalars are placed before ta…

Android Strings Translate: strings.xml That Still Builds — Translates an Android string resource file (res/values/strings.xml) into another language and returns the whole XML file, so the Android build and the app accept it. Only the text between the tags changes. Resource names, attributes, comments, placeholders such as %1$s, %d and %%, the escapes backslash-apostrophe, backslash-quote, backslash-n and backslash-at, the quoted form for leading or trailing spaces, inline markup, CDATA sections…

Translate App Text (JSON, YAML, PO) — Translates app strings and locale files (JSON, YAML, gettext PO, ICU messages, HTML snippets) into another language without breaking them. Keys, placeholders such as {name}, {{count}}, %s, %(name)s and %{count}, ICU plural and select syntax, HTML tags and URLs come back byte for byte; only the human text is translated, and plural forms are added where the target language needs more of them. Use when asked to translate a JSON or YAML locale file, an en.json,…

SQLite Search Builder — Builds or fixes a site or product search so it finds what the user meant, with SQLite full-text search (FTS5) on D1, Turso or SQLite. Word order, singular or plural, endings, case, punctuation and accents stop mattering ("cafe" finds "Café", "tomatoes" finds "tomato", "red tomato" finds "Tomato, red", "ab1042" finds "AB-1042"), and the start of a word is enough ("tom" finds "tomatoes"). Gives one normalize pipeline for accent-insensitive search, a query-side ending remov…

JSON Diff Paths — Compares two pasted JSON documents, BEFORE and AFTER, and lists every value that differs as strict JSON, one entry per changed path, with the old and the new value. Paths are JSON Pointers, types are strict (the string "1" is not the number 1, null is not a missing key, an empty array is not an empty object), arrays are compared by index with no move detection, object key order and number spelling (1.0, 1e2) are not changes, and a document that is not valid JSON is refused, ne…

x402 Seller: Get Paid and Listed in Bazaar — Diagnoses why an HTTP API sold over x402 v2 cannot be paid by standard buyer agents or never appears in the Coinbase CDP Bazaar catalog, using an ordered checklist and a decision tree over the pasted 402 response, headers and symptoms. Names the exact field that is wrong or missing and how to prove the fix. Use when asked to check an x402 seller, fix an unpayable 402 endpoint, find out why a resource is not listed in Bazaar, or why a settled payment …

PR Description From a Diff — Writes a pull request title and description from a pasted unified diff, as Markdown only - a title line of at most 72 characters, then four fixed sections - Summary, Changes, Tests and Risks - where every file the diff touches is named once, including renames, deletions, binary files, mode changes, lockfiles and formatting-only edits, and nothing is claimed that the diff does not show. It describes what the hunks change and leaves out a reason, a speed gain, a secur…

Screenshot Evidence Check — Reads a description of how a web page was captured or measured - a headless browser capture with a window size, a tall screenshot, a document width reading, a local Lighthouse run, a PageSpeed Insights run, an automation session that has been open for hours, a command-line download size on Windows - and says what that evidence proves, what it cannot prove and the one measurement that would decide, answered as JSON with a verdict. Knows the ways the capture itself pro…

Frontend Layout Review: CSS Grid, Hydration, Next.js — Reviews pasted CSS, Tailwind classes, JSX and Next.js client components for the layout and hydration defects that look fine on a desktop screenshot and then break on a phone or wipe the page in the browser. It flags a grid column written as a bare 1fr that refuses to shrink and, inside a clipping container, cuts the content without any horizontal scroll, width media queries written in pixels beside rem-based breakpoints, dates formatted ins…

Social Auto-Posting Code Review: Bluesky, Mastodon, DEV — Reviews pasted code that announces published articles to social channels (Bluesky, Mastodon, a Facebook page, Pinterest through a feed, Tumblr, DEV) for the ways a channel stays silent or posts twice, which tests with a fake network and a green build do not catch. It flags a shared HTTP helper that cuts a response body the Bluesky login then parses, a text cut by UTF-16 position or link offsets taken from character positions instead of U…

Spend Cap Review: Do Cost Limits Really Stop? — Reviews pasted code and configuration that spends money (paid AI or API calls, purchases, paid lookups, anything billed per use) and checks whether the limit on that spending really stands in the way of the spending. It flags a cap that sits beside the path instead of on it (a gateway limit while a script calls the provider directly, a counter only in the browser), a missing setting that means no limit, an alert or a budget email used as the prote…

Test Review: Can This Test Ever Fail? — Reviews a pasted test, check script, smoke test, mutation script or CI step and says whether it can fail when the thing it guards is broken, so a green result is worth something. It finds a completeness guard that counts its own hard-coded list instead of the directory, a one-star glob that never enters subfolders, a mutation script that restores with git checkout and wipes the uncommitted fix under test, a null test that an empty string passes, a status …

Cloudflare Rate Limit Review: WAF, Workers, 429 — Reviews a rate-limiting setup on Cloudflare (a WAF rate limiting rule, a Workers Rate Limiting binding, or a counter in your own code) and lists every reason it will not limit what its author thinks it limits. It flags free-plan rules that use the client address or a header field, which the plan refuses, windows the plan does not offer, an address key for callers that are themselves Workers and share one outbound address, a binding number treate…

Cloudflare Image Review: Quota, WebP, R2 — Reviews a pasted image pipeline (upload or AI generation, storage in R2, resizing, serving through Cloudflare image transformations, a Next.js loader, a sharp or WebP script) for the traps that quietly ship huge or broken images or spend a shared quota. It flags photographs stored as PNG, files stored exactly as a generator returned them, a redirect-on-error setting that hides an exhausted transformation quota, a list of widths that multiplies the uniq…

Product Description From a Spec Sheet — Writes shop product copy (title, short description, bullets, long description) from a specification sheet and nothing else, in the sheet's language. Every figure keeps its unit and its qualifier, no superlatives or unsupported claims, and values that contradict each other are reported instead of chosen. Use when asked to write a product description, product page text, catalogue entry or marketplace listing copy from a spec sheet, in any language. One-time…

Job Description From Notes: Gaps Marked, Nothing Invented — Turns a hiring manager's rough notes into a job post with fixed sections (title, about the role, responsibilities, requirements, nice to have, location and working model, pay, process) in the language of the notes. Everything comes from the notes; a section the notes do not cover gets one [TBD: what is missing] line instead of a guess, and no benefit, salary, bonus, start date, team size, tool, perk or culture claim is added. Wording a…

Chain Evidence Check — Judges whether an on-chain observation really proves a claim about a payment, a wallet or an RPC endpoint on an EVM chain, and answers as JSON with a binary verdict, the reason and the one check that would decide. Knows the readings that answer for the wrong thing - a null transaction receipt seconds after settlement, a block explorer that indexes a minute late and a balance view that lags its own transfer list, a public RPC endpoint that refuses receipts with an error or…

YAML Repair: Fix Broken YAML, Keep Every Value — Repairs broken YAML and Markdown front matter so a program can parse it, without changing any value's text or type, and answers with the YAML only, no code fence. Fixes tabs used as indentation, indentation that fits no parent, a missing closing quote or bracket, values that need quotes (a colon inside, a leading star or at sign), and output cut off in the middle, where the cut value is kept as cut and never completed. Yes, no, on, off and NO sta…

Env File Repair: Fix .env and INI Syntax, Keep Values — Repairs a broken .env file or INI file so the program that loads it reads every variable with the value its author meant, and answers with the file only, no code fence. Quotes a value that holds a hash sign or must keep its leading or trailing spaces, closes a quote that was left open, joins a key pasted over several lines, picks the quote style that keeps backslashes and mixed quotes intact, and leaves numbers such as 007 and 1.10, empty …

TOML Repair: Fix Broken TOML, Keep Every Value — Repairs TOML 1.0 that does not parse (pyproject, Cargo manifests, Worker config files, tool settings) without changing any value's text or type, and answers with the TOML only, no code fence. Fixes unquoted strings, keys with spaces, a missing equals sign, an unclosed quote, bracket or table header, backslashes in Windows paths, numbers with leading zeros, decimal commas, slash dates, a multi-line inline table, and chat text or a fence around the…

Bulgarian Transliteration (Official Latin Spelling) — Turns Bulgarian Cyrillic text into Latin letters by the official Bulgarian system, the one the Transliteration Act of 2009 makes mandatory for names, addresses, passports, forms and place names. One letter table, the word-final ия written ia, the country written Bulgaria, ъ written a, щ written sht, and every digit, punctuation mark, Latin word and line break kept byte for byte. Also makes URL slugs and flags letters that Bulgarian does not …

Image Prompts in One Style: Clean Pictures for a Site — Writes prompts for image models (FLUX, Stable Diffusion, ChatGPT images, Gemini and the like) that give a website, a blog or a product one recognisable style and come back without garbled letters. The scene comes first and the site's style recipe follows it word for word; absence is described positively instead of "no text, no watermark", which in a single prompt box summons those very things; anything that would need readable writing (a p…

Social Posting APIs 2026: Limits and Costs — Tells a publishing agent what the social networks allow, cost and return in autumn 2026, checked on 8 October 2026, before it plans or writes the posting code. Covers X (no free tier, pay per request, a post with a link costs more), Hashnode (public API now needs a paid plan), Pinterest feed auto-publish (domain claim, first board by alphabet, image tag, first pins within the hour), Mastodon (media 202, scopes, token replacement, one-hour Idempotency…

Cloudflare Workers Review: D1, OpenNext, Fetch — Reviews pasted Cloudflare Workers code and configuration (a Worker, a Next.js app on OpenNext, D1 queries, wrangler config) for platform pitfalls that pass every local test and then fail in production or quietly cost money. It flags the edge runtime under OpenNext, a fetch to your own Worker's workers.dev address (error 1042), D1 queries that bind more than 100 parameters as data grows, LIKE patterns over D1's 50-byte limit, reading rowsAffected …

Markdown Table Repair API: turns a broken table, tab-separated text or an HTML table into a GFM table without changing any cell - adds the alignment row and pipes, escapes a pipe in a cell, pads short rows; 007 and 1.10 stay as written. $0.003 USDC per call, no account, no language model: a too-long row or an ambiguous pipe gets a paid CANNOT REPAIR verdict. POST JSON {input} up to 60 000 chars; free example at https://api.aiskills402.com/v1/run/markdown-table-repair/example

AI Crawler Access Check: Who Gets a 403 — Reads the results of probing a website with AI-crawler user agents (status codes per bot, a control request, sometimes robots.txt or the site's settings) and says what they really show as JSON - whether training bots, search bots and user-triggered agents are open, blocked, mixed or unknown, what is behind a refusal, and whether the robots.txt that answered is the site's own file. Knows the traps - a bare bot name proves nothing and lies differently for…

CSV Repair API: turns CSV a parser rejects into valid CSV without changing any cell - fixes quotes, pads short rows, unwraps Markdown tables, chat text and fences; 1,250 and 007 stay as written. $0.004 USDC per call, no account, no language model: a too-long row, an ambiguous row or prose with no table gets a paid CANNOT REPAIR verdict. POST JSON {input} up to 60 000 chars; free example at https://api.aiskills402.com/v1/run/csv-repair/example

Mojibake Repair API: undoes broken encoding (UTF-8 read as Windows-1252, Latin-1 or Windows-1251, once or twice) byte by byte. Deterministic code, no language model: mixed, half-damaged or lost-byte text gets a CANNOT REPAIR verdict instead of a guess (still one paid call). $0.004 USDC per call, no account. POST JSON {input}, up to 60000 chars; free example at https://api.aiskills402.com/v1/run/mojibake-repair/example

Cron Dialect Convert API: moves a schedule between crontab, GitHub Actions, Cron Hub, Quartz and Cloudflare Workers Cron Triggers so the target fires at exactly the same times - weekday numbers, either/both day rules, macros, time zones. $0.005 USDC per call, no account, no language model: what cannot run at the same times gets a paid CANNOT CONVERT verdict. POST JSON {source, target, schedule, timezone}; free example at https://api.aiskills402.com/v1/run/cron-dialect-convert/example

x402 Offer Check API: probes a public x402 storefront from the Cloudflare edge (GET, POST, OPTIONS) and reports what a buyer sees - payment-required header vs body, extra, bazaar, CORS, header size, 404 on the other method - as findings by severity. $0.01 USDC per check, a live measurement (a replayed payment header returns the receipt, not a new measurement). POST JSON {url, method?}; free example at https://api.aiskills402.com/v1/run/x402-offer-check/example

Shorten to a Limit — Cuts a text down to a stated limit (words or characters) by editing the author's own text, keeping every number, name, date, address and qualifier of every fact that stays, and counting the result so it is under the limit. Use when a text must fit a field with a maximum length, such as a social post, a notification, a slide line, an abstract, a form box or a short description, or when asked to cut, trim or shorten a text to N words or N characters. One-time purchase of the …

D1 Migration Writer: SQLite Migrations That Apply — Writes a SQL migration for Cloudflare D1 or SQLite from the current schema and the change wanted, so it applies on the first try and leaves the rows already in the database right. Knows what D1 refuses or breaks on, measured on a real D1 database - BEGIN and COMMIT in the file, foreign keys that cannot be switched off (a rebuild defers them, keeps the table name, and never closes with defer_foreign_keys = false, which on D1 silently skips the …

Translate Markdown: Docs That Still Build — Translates a Markdown, MDX or HTML document (docs page, README, blog post, help article) into another language and returns the whole document with only the human text changed. Fenced and inline code, link and image targets, front matter keys and machine values, HTML tags and attributes, heading ids, reference labels, comments and template tags come back byte for byte, so the page still builds and every link still works. Alt text, titles and link text …

Cron Schedule for Cloudflare Workers — Turns a schedule described in words into cron expressions for Cloudflare Workers Cron Triggers, answered as JSON with the crons and a note. Knows where Cloudflare differs from classic cron, measured on a live Worker - day-of-week 1 is Sunday, so 1-5 runs Sunday to Thursday and 7 is Saturday, while 0 and ? are rejected; times are UTC only. Writes day names instead of numbers, uses L, LW, W and # for last and n-th days, splits intervals that do not divide an…

Reply Language Lock: Answers in the User's Language — Keeps an assistant answering in the language the user writes in, whatever the language of the pasted text, the logs, the code comments, the tool output or the documents it works from. Covers the slips that happen in practice - drifting into the language of an English log or a Russian forum post, mixing in words or letters of a close neighbour (Russian in Bulgarian or Ukrainian, Czech in Polish, Portuguese in Spanish, Dutch in German), answer…

Traffic Reality Check: Real Readers vs Bots — Reads the numbers from Cloudflare Web Analytics and zone analytics (GraphQL or the dashboard) and says how many of them are real readers or real server errors, answered as JSON with the computed figures and a short reason. Knows what pollutes the table - the owner's own headless-browser checks, link-preview fetches from the social network that show up as referrals, the site's own Worker and its cache calls counted as visitors or as 5xx errors, the r…

Cloudflare Evidence Check — Judges whether a check someone ran on a Cloudflare-hosted site really proves what they claim, and answers as JSON with a verdict, the reason and the one check that would decide. Knows the instruments that answer for the wrong thing - the command-line object read that serves a cached copy after a delete, a delivery log that records neither test mail, a zero-row log search that looks the same as code that never ran, a local migration run, a staging secret, the free pre…