investigate SKILL.md skillA

investigate from borda/ai-rig is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add borda/ai-rig/investigate@git:20261009.253fdb3

Pins git:20261009.253fdb3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
borda/ai-rig
Path
plugins/cc_foundry/skills/investigate/SKILL.md
Versions recorded
15
Latest version
git:20261009.253fdb3, committed Oct 9, 2026
First version recorded
Aug 6, 2026
Size
23,887 bytes
Repository stars
28
License
Apache-2.0

Systematic diagnosis for unknown failures — local environment, tool setup, CI vs local divergence, hook misbehavior, and runtime anomalies. Gathers signals broadly, ranks hypotheses, uses adversarial review (Codex or foundry:challenger) for ambiguous cases, probes each, and reports root cause with a recommended next action. NOT for known code bugs (/develop:debug (requires `develop` plugin)) or config quality (/foundry:audit). TRIGGER when: unknown failure with no Python traceback — hook not…

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

<objective>

Diagnose unknown failures: broken local setup, environment mismatch, tool misbehavior, hook problems, CI vs local divergence, permission errors, runtime anomalies. Gather signals broadly, eliminate hypotheses systematically, report confirmed root cause + recommended next skill. No fixes — diagnosis only. NOT for: known Python test failures with traceback (use `/develop:debug` (requires `develop` plugin)); `.claude/` config quality sweep (use `/foundry:audit`).

</objective>

<inputs>

- **$ARGUMENTS**: required — symptom, question, or failing command, e.g.:

  - `"hooks not firing on Save"`
  - `"bridge review is unavailable on this machine"`
  - `"/calibrate times out every run"`
  - `"CI fails but passes locally"`
  - `"uv run pytest can't find conftest.py"`

- **`--fast`**: optional flag — skip Step 4 adversarial Codex review; use when speed matters more than thoroughness, or Codex unavailable.

$ARGUMENTS empty or too vague: use AskUserQuestion: "What exactly is failing or behaving unexpectedly? Include the command and any error output you can share."

</inputs>

<compaction>
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add borda/ai-rig/investigate@sha256:ff6ac13f888d19d5

The line at the top of this page pins the label git:20261009.253fdb3, 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_ljcgdkdqedghtk6u.svg)](https://markdownregistry.com/a/art_ljcgdkdqedghtk6u)

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

Versions

The registry has recorded 15 versions of this file, between Aug 6, 2026 and Oct 9, 2026, about one every 5 days.

versioncommittedcommitsizeaudit
git:20261009.253fdb3 latest2026-10-09 253fdb3 23,887 BA view · diff
git:20261005.6367f832026-10-05 6367f83 23,879 BA view · diff
git:20261002.e974f382026-10-02 e974f38 23,872 BA view · diff
git:20261002.381549d2026-10-02 381549d 23,720 BA view · diff
git:20260930.470cd2e2026-09-30 470cd2e 21,677 BA view · diff
git:20260929.98a9e772026-09-29 98a9e77 21,602 BA view · diff
git:20260923.39e3a482026-09-23 39e3a48 21,044 BA view · diff
git:20260918.3e1a63d2026-09-18 3e1a63d 20,749 BA view · diff
git:20260912.65e8e292026-09-12 65e8e29 20,888 BA view · diff
git:20260911.182df572026-09-11 182df57 20,901 BA view · diff
git:20260821.d9793192026-08-21 d979319 21,265 BA view · diff
git:20260819.367ab282026-08-19 367ab28 21,260 BA view · diff
git:20260808.c2ee8972026-08-08 c2ee897 21,458 BA view · diff
git:20260808.1b905ff2026-08-08 1b905ff 21,051 BA view · diff
git:20260806.848a1702026-08-06 848a170 21,129 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 (23887 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

borda/ai-rig · 28 stars · license Apache-2.0 · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ljcgdkdqedghtk6u
GET https://markdownregistry.com/api/v1/resolve?ref=borda/ai-rig/investigate
GET https://markdownregistry.com/api/v1/blob/ff6ac13f888d19d5f26efd185ddee09f4808a8b073c6eff5d7ff3dffbb09a82a

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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