tune SKILL.md skillA
tune from duthaho/skillhub is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add duthaho/skillhub/tune@git:20260729.22fe8abPins git:20260729.22fe8ab in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- duthaho/skillhub
- Path
.claude/skills/tune/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260729.22fe8ab, committed Jul 29, 2026
- First version recorded
- Jul 10, 2026
- Size
- 8,651 bytes
- Repository stars
- 9
- License
- MIT
Harness retro — turn recurring agent mistakes into one-line fixes. Mines recent session transcripts (plus the bugfix log and past runs) for repeated corrections, permission friction, and rules that get violated anyway, then proposes ranked changes one at a time: a CLAUDE.md rule, an allowlist entry, a script replacing repeated prose, a new-skill candidate, or a deletion that no longer earns its context cost. Nothing applies without approval; accepted/rejected findings persist in…
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
# tune — the harness retro `/tune` — audit the current project's harness against recent sessions `/tune all` — widen across every project under `~/.claude/projects/` Answer one question: **what keeps going wrong across sessions, and what one-line change would make it impossible next time?** Correcting the agent fixes one session; correcting the harness fixes every session after it. The evidence is already on disk — the transcripts recorded every correction, every retyped instruction, every permission prompt. This skill reads them so the user doesn't repeat them. ## Step 0 — Scope, then inventory **Scope:** default is the current project's transcripts — the last ~10 sessions or 2 weeks, whichever is smaller — from `~/.claude/projects/<project-dir>/*.jsonl` (the dir name is the project path with `/` → `-`). `/tune all` widens to every project; mining gets shallower per project, say so. **Inventory the harness first** — findings only mean something against the baseline. Read: user + project `CLAUDE.md`, the installed skills (names + descriptions), `settings.json` / `settings.local.json` (permissions, hooks). Also read `out/tune/learnings.md` (past accepted/rejected — don't …
Read the whole file at its exact version.
How to install
mdr add duthaho/skillhub/tune@sha256:234f81fff9a87364The line at the top of this page pins the label git:20260729.22fe8ab, 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_kipalexk56nehtas)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 10, 2026 and Jul 29, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.22fe8ab latest | 2026-07-29 | 22fe8ab | 8,651 B | A | view · diff |
| git:20260718.d8671ae | 2026-07-18 | d8671ae | 8,163 B | A | view · diff |
| git:20260714.f7ff09b | 2026-07-14 | f7ff09b | 6,873 B | A | view · diff |
| git:20260714.429242b | 2026-07-14 | 429242b | 6,553 B | A | view · diff |
| git:20260710.355dbf7 | 2026-07-10 | 355dbf7 | 6,854 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 (8651 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
duthaho/skillhub · 9 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kipalexk56nehtas GET https://markdownregistry.com/api/v1/resolve?ref=duthaho/skillhub/tune GET https://markdownregistry.com/api/v1/blob/234f81fff9a873640da1bb03c3be904f5cc0020afa6d4c343d187a94e1731b0d
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.