debug-investigator SKILL.md skillA
debug-investigator from mathews-tom/armory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mathews-tom/armory/debug-investigator@v1.1.1Pins v1.1.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mathews-tom/armory
- Path
skills/debug-investigator/SKILL.md- Versions recorded
- 5
- Latest version
- v1.1.1, committed May 11, 2026
- First version recorded
- Mar 27, 2026
- Size
- 14,613 bytes
- Repository stars
- 334
- License
- MIT
Hypothesis-driven debugging with ranked hypotheses, git bisect strategy, instrumentation planning, and minimal reproduction design. Triggers on: "debug this systematically", "root cause analysis", "bisect this bug", "rank hypotheses", "isolate this issue", "minimal reproduction". NOT for general reasoning.
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
# Debug Investigator Structured debugging methodology that replaces ad-hoc exploration with hypothesis-driven investigation. Captures symptoms, builds a deterministic feedback loop, analyzes evidence (stacktraces, logs, state), generates ranked hypotheses, designs bisection strategies, identifies instrumentation points, and produces minimal reproductions — documenting every step so dead ends are never revisited. > **When to use this skill vs native debugging:** The base model handles straightforward > debugging (clear stacktraces, obvious errors) natively. Use this skill for non-obvious bugs > requiring systematic investigation: intermittent failures, bugs with no clear stacktrace, > performance regressions, or issues requiring git bisection and hypothesis ranking. ## Reference Files | File | Contents | Load When | | -------------------------------------- | ----------------------------------------------------------------------------- | ------------------------------- | …
Read the whole file at its exact version.
How to install
mdr add mathews-tom/armory/debug-investigator@sha256:85f90b165b847e66The line at the top of this page pins the label v1.1.1, 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.
[](https://markdownregistry.com/a/art_cdanmt4ug75oqjmi)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 27, 2026 and May 11, 2026, about one every 11 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.1 latest | 2026-05-11 | 1433f00 | 14,613 B | A | view · diff |
| v1.1.1 | 2026-04-11 | 0aa221a | 12,546 B | A | view · diff |
| v1.1.1 | 2026-04-09 | 1cc63e5 | 13,080 B | B | view · diff |
| v1.1.1 | 2026-04-07 | b03849d | 13,065 B | B | view · diff |
| v1.1.0 | 2026-03-27 | d46cf2e | 13,065 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14613 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
mathews-tom/armory · 334 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cdanmt4ug75oqjmi GET https://markdownregistry.com/api/v1/resolve?ref=mathews-tom/armory/debug-investigator GET https://markdownregistry.com/api/v1/blob/85f90b165b847e66227a4f80b996393151375c59942e123e69376cdc1f0a28c8
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.