plan-a-change SKILL.md skillA
plan-a-change from testdouble/han is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testdouble/han/plan-a-change@git:20260909.dde8d4aPins git:20260909.dde8d4a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testdouble/han
- Path
han-planning/skills/plan-a-change/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260909.dde8d4a, committed Sep 9, 2026
- First version recorded
- Sep 9, 2026
- Size
- 26,218 bytes
- Repository stars
- 338
- License
- MIT
Plans an architecture-driven change to code that already exists: module boundaries, type responsibilities, layering, coupling, and the public surface a revision moves. Produces a buildable change plan that names the types, modules, and methods involved and records the surface delta each change makes. Use when the user wants to plan, scope, or sequence a restructure, extraction, split, consolidation, responsibility shift, or API revision of existing code, including…
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
## Project Context
- CLAUDE.md: !`find . -maxdepth 1 -name "CLAUDE.md" -type f`
- project-discovery.md: !`find . -maxdepth 3 -name "project-discovery.md" -type f`
- personal config directory: !`bash "${CLAUDE_PLUGIN_ROOT}/scripts/han-config-dir.sh" 2>/dev/null || echo "$HOME/.claude"`
- project .han/config.md: !`cat .han/config.md 2>/dev/null || echo ""`
As your first action, use the Read tool on `.han/config.md` inside the `personal config directory` path above. A read
that returns no file is no personal configuration: continue silently. When that file or the `project .han/config.md`
probe supplies content, apply it per [config-rule.md](../../references/config-rule.md), which governs precedence
between the two files, relative-path resolution, and what to do with a file that reads but cannot be used.
## Operating Principles
- **Code-level names are the subject of this plan, not a leak into it.** Types, modules, files, methods, and public
signatures are what the plan is about. A sibling skill forbids them because it specifies behavior a user observes;
this one plans a structure an engineer works in, so name the thing. The altitude limit is different in kind: carry the
…Read the whole file at its exact version.
How to install
mdr add testdouble/han/plan-a-change@sha256:204f7f335c3b74adThe line at the top of this page pins the label git:20260909.dde8d4a, 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_h2htnut7ba3f2ej7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Sep 9, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260909.dde8d4a latest | 2026-09-09 | dde8d4a | 26,218 B | A | view · diff |
| git:20260909.f586d00 | 2026-09-09 | f586d00 | 25,369 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 (26218 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
testdouble/han · 338 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_h2htnut7ba3f2ej7 GET https://markdownregistry.com/api/v1/resolve?ref=testdouble/han/plan-a-change GET https://markdownregistry.com/api/v1/blob/204f7f335c3b74ad2a3749f12aa0874d70303cfffb987544d1ba5be36e174fb1
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.