retro SKILL.md skillA
retro from leek/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add leek/agent-skills/retro@git:20261020.d6396e8Pins git:20261020.d6396e8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- leek/agent-skills
- Path
skills/retro/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261020.d6396e8, committed Oct 20, 2026
- First version recorded
- Oct 5, 2026
- Size
- 13,028 bytes
- Repository stars
- 4
- License
- MIT
Look back over AI-coding sessions (this one, or recent session logs) and propose improvements to the agent's environment.
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
# Retro Turn sessions into a ranked list of concrete improvements to the agent's **environment**, not the code. Read-only analysis; **never modify the log files**. Output a numbered proposal list with one verbatim (redacted) evidence line per finding, then let the user pick which to apply. **Scope.** `this`, or a run straight after a build or a bug fix: the current session. Its conversation is already in context, so skip steps 1–3 and apply the lenses in step 4 to it. After the context was cleared, find that session's log in step 1 and mine only it. Otherwise: the N most recent sessions, steps 1–6. ## Where the logs live - **Claude Code:** `~/.claude/projects/<slug>/*.jsonl` (top-level sessions). Per-session subagent transcripts are under `<uuid>/subagents/agent-*.jsonl`: **skip these** when counting "sessions"; they're part of a parent. - **Codex:** `~/.codex/sessions/<year>/<month>/<day>/rollout-*.jsonl` and `rollout-*.jsonl.zst`. Child-agent rollouts belong to their parent session. - **Grok:** `~/.grok/sessions/<url-encoded cwd>/<id>/chat_history.jsonl`. A cwd under `/private/tmp` is usually a headless `panel` run. …
Read the whole file at its exact version.
How to install
mdr add leek/agent-skills/retro@sha256:8a566790e2ef2393The line at the top of this page pins the label git:20261020.d6396e8, 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_dfp7basjmoqkcnpf)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Oct 5, 2026 and Oct 20, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261020.d6396e8 latest | 2026-10-20 | d6396e8 | 13,028 B | A | view · diff |
| git:20261020.8b6bb45 | 2026-10-20 | 8b6bb45 | 12,791 B | A | view · diff |
| git:20261020.353dd4f | 2026-10-20 | 353dd4f | 12,673 B | A | view · diff |
| git:20261017.a40cf93 | 2026-10-17 | a40cf93 | 11,374 B | A | view · diff |
| git:20261006.cae3ac3 | 2026-10-06 | cae3ac3 | 9,385 B | A | view · diff |
| git:20261005.bebad6a | 2026-10-05 | bebad6a | 9,179 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 (13028 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
leek/agent-skills · 4 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dfp7basjmoqkcnpf GET https://markdownregistry.com/api/v1/resolve?ref=leek/agent-skills/retro GET https://markdownregistry.com/api/v1/blob/8a566790e2ef2393dab4119869f8749f38373798107cb66518a8ec4b13db79c7
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.
More from leek/agent-skills
Every file in leek/agent-skills