agents.writerslogic.com

Lists the wheels PyPI offers for a package release and picks those compatible with a given CPython version, OS, CPU architecture and libc (glibc or musl version, or macOS version), best match first, for agents choosing base images or debugging 'building from source' installs. Applies PEP 425/600/656 tag ordering, abi3, legacy manylinux aliases, Requires-Python and yanked files. CPython only (no Py

Checks whether up to 10 package names (optionally with a version) exist in the live npm, PyPI or crates.io registry, for coding agents about to add a dependency they may have invented. Per package: exists, latest version, deprecated or yanked flag, and for a missing name the closest names the registry's own search returns (npm, crates.io; PyPI has no search API). Reads registry metadata only: neve

Statically analyses an ECMAScript regular expression (up to 500 characters) for catastrophic backtracking (nested or overlapping quantifiers, ambiguous alternation in a loop, backreferences, lookarounds) for agents that write or accept regexes. Runs the caller's test subjects (up to 20, 1000 characters each) only when the pattern is proven polynomially bounded and the subject is short enough for t

Checks one SQL string (up to 20000 characters; PostgreSQL, MySQL, SQLite or generic) before an agent executes it: exactly one statement, read-only (SELECT/VALUES/SHOW/EXPLAIN without side effects), and every table it reads or writes on a caller allowlist. Tokenizer-level: comments, string literals, quoted identifiers and dollar quoting cannot hide a second statement; reports statement kind, refere

Classifies each statement of a PostgreSQL, MySQL or SQLite migration (up to 20000 characters) as reversible, needing a backup, needing the original definition, or irreversible, for agents that write or review schema migrations. Flags DROP TABLE/COLUMN, TRUNCATE, unbounded DELETE/UPDATE, lossy type changes, NOT NULL or constraints that fail on existing rows, table-rewrite and lock hazards, and MySQ

Decodes a compact JWT (never verifies the signature) and checks it against RFC 7519 and RFC 8725 for an agent about to trust or forward it: alg none or missing, crit and key-supplying headers (jku, x5u, jwk), kid injection shape, duplicate claims, and exp, nbf, iat against a caller-supplied time, plus optional expected algorithms, issuer and audience. Without asOf the time claims are not judged an

Evaluates up to 25 file paths against the text of a .gitignore, a CODEOWNERS file or a list of glob patterns and reports, per path, whether it matched, the winning rule's line and pattern, and why (last match wins, directory-only rules, negation, a re-include blocked by an excluded parent directory, CODEOWNERS owner lists). Optional per-path expectations turn it into a pass/fail check, and CODEOWN

Compares an old and a new manifest and reports every way the new one gains privilege, for agents reviewing dependency bumps and extension or app updates. npm package.json: new or changed install-time lifecycle scripts, gypfile, bin entries and URL/git/file dependencies (including overrides). Chrome manifest.json: added permissions with Chrome's own warning text, host access not covered by the old

Takes a lockfile (package-lock.json or a YAML lockfile such as pnpm-lock.yaml) containing git merge-conflict markers, rebuilds both sides, and merges them key by key (using the diff3 base when present), returning the resolved file or the exact conflicting key paths with both values, for agents rebasing or merging branches. An optional prefer=ours|theirs applies one explicit policy to the remaining

Validates the format and check digit of up to 100 identifiers per call, for an agent about to put an IBAN, ISBN, GTIN/EAN/UPC, container number, VIN, ISIN, CUSIP, SEDOL, LEI, IMO number, BIC or Luhn number into a payment, order or record. Each item is {kind, value}; with kind omitted the engine proposes candidate kinds and answers unknown if two kinds both validate. Reports the normalized form (lo

Parses a Dockerfile (continuations, escape directive, heredocs, flags, stages) and reports instruction orderings that defeat the layer cache or make rebuilds drift, for agents writing or reviewing container builds. Cache: COPY of the whole context before a dependency or package install, apt-get update in its own RUN, per-build ARG/ENV values (build date, git sha) declared before later RUN steps. R

Evaluates a real-valued expression in binary64 (or binary32) on a deterministic grid over the caller's variable ranges and compares each point with a certified arbitrary-precision reference, reporting the decimal digits lost, the worst input, and overflow, underflow or NaN. Recognises and rewrites exp(x)-1, 1-cos(x), log(1+x), sqrt(a)-sqrt(b), a^2-b^2, the quadratic formula, sqrt(x^2+y^2) and log-

Decodes hex calldata (selector plus arguments), function return data, revert data or an event log against a caller-supplied ABI using ethers, for agents inspecting a transaction before signing or after it fails. Handles tuples, nested and dynamic arrays, bytes and strings, and the built-in Error(string) and Panic(uint256) reverts; a strict re-encode check flags trailing bytes, dirty padding and no

Takes up to 100 GTINs and, for an agent reconciling a product feed or order lines, validates each check digit, converts it to the 14-digit form, reads the indicator digit and GS1 Prefix (restricted-circulation, ISBN/ISSN range, coupon), and, when a parent GTIN is given, checks the two share one base item (the packaging-level link). It does not look up the brand owner, the product or the country of

Decodes up to 50 VINs per call for an agent handling a vehicle listing, claim or order: validates the 17 characters and letters I/O/Q, the position-9 check digit (49 CFR 565.15), the world manufacturer identifier from a bundled NHTSA vPIC snapshot, and the model year from position 10. Position 10 repeats every 30 years: pass vehicleClass light (position 7 resolves the century) or asOf, otherwise b

Checks up to 50 texts per call against a platform limit, for an agent writing a message, post, store listing, ad or push payload that must not be truncated or split. sms: GSM 7 bit vs UCS-2 and the exact segment boundaries per 3GPP TS 23.038 (extension characters cost 2 septets and never straddle a segment; an emoji is 2 UTF-16 units). x: weighted length per the open-source twitter-text config v3

Checks the structure and check digit of up to 100 EU VAT numbers per call (Austria, Belgium, Germany, Denmark, Finland), for an agent about to put a supplier or customer VAT number on an invoice or into a record. Every other country answers unsupported rather than guessing a pattern. It never says whether the number is registered or active (that needs VIES or the national register), and a pass is

Converts up to 200 timecodes, frame counts or times between SMPTE HH:MM:SS:FF (non-drop), HH:MM:SS;FF (drop-frame, 29.97 and 59.94), frame numbers and exact rational seconds, for an agent editing video, captions or logs at a stated frame rate. Rates are integers, a rational like 30000/1001, or the named 23.976, 29.97, 59.94, 119.88; any other decimal is rejected, never rounded. Integer arithmetic

Parses an SRT or WebVTT file (up to 400000 characters, 4000 cues) and checks every cue for an agent about to deliver or burn in captions: end after start, overlaps and out-of-order cues, minimum gap, minimum and maximum duration, lines per cue, characters per line and characters per second (markup tags are not counted). Rules come from a named profile (netflix-en-adult, netflix-en-children, values

Applies your pronunciation lexicon (up to 200 terms, each an IPA string or a spoken alias) to a text of up to 20000 characters and returns SSML 1.1 with <phoneme alphabet="ipa"> or <sub alias> around each whole-word match, XML-escaped, for an agent preparing text for a text-to-speech engine. Matching is whole-word, longest term first, left to right, deterministic. It does not guess pronunciations,

Rewrites digits in up to 20000 characters of text into spoken words for a TTS engine, for locales en-US and en-GB: cardinals, ordinals, years (with a preceding cue such as "in" or a month) and decades, decimals, percentages, currency with ISO 4217 minor units ("$12.50" -> "twelve dollars and fifty cents"), phone numbers read digit by digit, and SI/common units with locale spelling (meter/metre). O

Reads a TrueType or OpenType font you supply as base64 (up to 2 MB) and a text of up to 5000 characters, for an agent about to render text in a fixed font: lists every code point with no glyph in the cmap (formats 4 and 12) and sums the hmtx advance widths to test a width in pixels. Every offset is bounds-checked. It does not apply kerning, ligatures or shaping (combining marks and complex scripts

Verifies an Open Badges credential end to end and says what could and could not be confirmed. Accepts an Open Badges 3.0 credential (JSON with an eddsa-jcs-2022 proof, or a VC-JWT signed with EdDSA, ES256 or RS256), an Open Badges 2.0 assertion (hosted, or signed as an RS256 JWS), a hosted-assertion URL, or a baked PNG or SVG image. Checks the 2.0/3.0 required fields, the issuance and expiry windo

Redacts personal data from text at the level you choose and proves the output is clean by scanning it again. Pick a level: 1 government identifiers (SSN, ITIN, EIN, UK NINO, Canadian SIN, driver's license, passport), 2 adds dates of birth, 3 adds street addresses and phone numbers, 4 adds person names and email addresses. Then switch single categories on or off with include and exclude, or name th

Honeypot / rug screening from live Base bytecode plus a Solidity audit of the token's verified source. Source is fetched from Sourcify (following EIP-1967/zeppelinos proxies to the implementation) when not supplied; unverified tokens are refused before any charge. Runs token-trap-detector ($0.25) + contract-auditor ($1.00) in one paid call for 20% less than buying them separately. Charged only whe