phx-investigate SKILL.md skillA
phx-investigate from oliver-kriska/claude-elixir-phoenix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oliver-kriska/claude-elixir-phoenix/phx-investigate@git:20260723.d82e8e5Pins git:20260723.d82e8e5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oliver-kriska/claude-elixir-phoenix
- Path
targets/codex/skills/phx-investigate/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260723.d82e8e5, committed Jul 23, 2026
- First version recorded
- Jul 21, 2026
- Size
- 4,132 bytes
- Repository stars
- 573
- License
- MIT
Investigate Elixir/Phoenix bugs root-cause first. Reproduce failures,.
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
# Investigate Bug Investigate Elixir/Phoenix bugs root-cause first. Reproduce or establish the failing behavior before recommending a fix, and cite concrete paths and lines. ## Usage ```text $elixir-phoenix:phx-investigate Users can't log in after password reset $elixir-phoenix:phx-investigate FunctionClauseError in UserController.show $elixir-phoenix:phx-investigate Complex auth bug --parallel ``` Treat the text after the skill name as the bug description. `--parallel` asks for independent investigation tracks when native Codex subagent tooling is available; it is an optimization, never a requirement. ## Iron Laws 1. **Read the error literally first** — extract the exception, message, failing assertion, and first relevant application frame before theorizing. 2. **Check the obvious before going deep** — compile errors, missing migrations, atom/string mismatches, nil values, stale servers, and changeset errors explain many failures. 3. **Reproduce before proposing a fix** — run the smallest relevant test or controlled command and record its output. If reproduction is impossible, state exactly what evidence establishes the failure instead. …
Read the whole file at its exact version.
How to install
mdr add oliver-kriska/claude-elixir-phoenix/phx-investigate@sha256:9c446344022b7313The line at the top of this page pins the label git:20260723.d82e8e5, 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_ffghkds3kdkhon4n)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 21, 2026 and Jul 23, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260723.d82e8e5 latest | 2026-07-23 | d82e8e5 | 4,132 B | A | view · diff |
| git:20260721.1a43137 | 2026-07-21 | 1a43137 | 4,063 B | A | 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 (4132 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
oliver-kriska/claude-elixir-phoenix · 573 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ffghkds3kdkhon4n GET https://markdownregistry.com/api/v1/resolve?ref=oliver-kriska/claude-elixir-phoenix/phx-investigate GET https://markdownregistry.com/api/v1/blob/9c446344022b7313f94f0812eced66be917bbd91f85a7312e9fd101603b94977
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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