concurrency-debugging SKILL.md skillA
concurrency-debugging from outlinedriven/outline-driven-development is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add outlinedriven/outline-driven-development/concurrency-debugging@git:20260905.fd53e99Pins git:20260905.fd53e99 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- outlinedriven/outline-driven-development
- Path
.devin/skills/concurrency-debugging/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260905.fd53e99, committed Sep 5, 2026
- Size
- 6,576 bytes
- Repository stars
- 55
- License
- Apache-2.0
Use when reading TSan race reports, debugging deadlocks with GDB thread inspection, analyzing Helgrind lock-order violations, or reviewing std::atomic and happens-before usage.
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
# Concurrency debugging ## Contract | Field | Bound contract | |---|---| | Trigger | A ThreadSanitizer or Helgrind report needs reading, a process hangs in a suspected deadlock, `std::atomic` usage needs review, or a cross-thread access needs a happens-before justification. | | Authority | Read-only. Emits analysis and commands for the operator to run on the target; no file writes, no rollback needed. No remote mutation. | | Side effect | Diagnostic commands and a verdict in chat. Nothing is written. | | Done | The race or deadlock is named by its two conflicting accesses or its lock cycle, the fix is stated, and the verification run is described. | ## Inputs 1. Symptom (required): a TSan or Helgrind report, a hung or deadlocked process, or code under review. 2. Build access (required for TSan and Helgrind): the project rebuilds with a sanitizer flag or runs under Valgrind. 3. Source (required): the code paths named in the report. ## Procedure 1. Detect the race with ThreadSanitizer. TSan ships inside GCC and Clang; it needs no separate install. ```bash gcc -fsanitize=thread -g -O1 -o prog main.c # clang takes the same flags ./prog …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/outline-driven-development/concurrency-debugging@sha256:4e2313e5b3f4a236The line at the top of this page pins the label git:20260905.fd53e99, 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_a2rvfmhac3ubfb4v)
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Versions
The registry has recorded 1 version of this file, committed on Sep 5, 2026.
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 (6576 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
outlinedriven/outline-driven-development · 55 stars · license Apache-2.0 · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_a2rvfmhac3ubfb4v GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/outline-driven-development/concurrency-debugging GET https://markdownregistry.com/api/v1/blob/4e2313e5b3f4a2369e11d369caf97741c837227782e64b230c78959e1757f586
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.