tax-fix SKILL.md skillA

tax-fix from filedcom/opentax is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add filedcom/opentax/tax-fix@git:20261018.c26716f

Pins git:20261018.c26716f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
filedcom/opentax
Path
.claude/skills/tax-fix/SKILL.md
Versions recorded
5
Latest version
git:20261018.c26716f, committed Oct 18, 2026
First version recorded
Apr 11, 2026
Size
2,808 bytes
Repository stars
131
License
AGPL-3.0

Bug-fix loop for a form:year benchmark (e.g. f1040:2025) or for MeF readiness (`mef`). Clusters failures by root cause, spawns parallel bug-fixer agents, gates each round with the harness, commits engine fixes only, and loops until clean or stalled.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Tax Fix

**Target:** $ARGUMENTS — `{form}:{year}` (default `f1040:2025`) or `mef`.

Read `AGENTS.md` and, if present, `forms/{form}/FORM.md`; pass both to every
agent. Nothing is persisted between runs: each round re-reads the scoreboards.

## 1. Read the failures

- `{form}:{year}`: `bun run bench:cached --form {form} --year {year} --json`
  (replays `bench` when nothing it reads changed). The last
  line is `{ total, pass, fail, failing, failures }`; each failure has
  `lineFailures`, `unsupportedChecks` and `errors`.
- `mef`: `bun run check:mef --json` (`returns`: sample return id → findings;
  `scripts/testing/mef-baseline.json` gives the reason each known one blocks)
  and `bun run check:ats --json` (per ATS scenario: `findings`, `schemaValid`,
  values matched against the packet). A baseline reason that calls a block a
  correct product boundary is not a bug; skip it.

Group failures that share a failing line or finding into one root cause, with
the node or export path that produces it. Causes in the same file go to one
agent.

## 2. Fix

Spawn one agent per group in a single message, using
`.claude/skills/tax-fix/agents/bug-fixer.md`. Fixers change engine code only
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add filedcom/opentax/tax-fix@sha256:4fc70d60321db064

The line at the top of this page pins the label git:20261018.c26716f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_mp4wcwfg2auycbn7.svg)](https://markdownregistry.com/a/art_mp4wcwfg2auycbn7)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Apr 11, 2026 and Oct 18, 2026, about one every 47 days.

versioncommittedcommitsizeaudit
git:20261018.c26716f latest2026-10-18 c26716f 2,808 BA view · diff
git:20261018.4d1a9772026-10-18 4d1a977 4,028 BA view · diff
git:20261016.2c999102026-10-16 2c99910 3,619 BA view · diff
git:20261016.336fa2d2026-10-16 336fa2d 3,627 BA view · diff
git:20260411.b125f832026-04-11 b125f83 2,829 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2808 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

filedcom/opentax · 131 stars · license AGPL-3.0 · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mp4wcwfg2auycbn7
GET https://markdownregistry.com/api/v1/resolve?ref=filedcom/opentax/tax-fix
GET https://markdownregistry.com/api/v1/blob/4fc70d60321db064d1588f3d94dd585b1d0e99000bc86deff98bb9997a3f8ebb

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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