automated-test-planning SKILL.md skillA
automated-test-planning 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/automated-test-planning@git:20260909.c5b4b91Pins git:20260909.c5b4b91 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testdouble/han
- Path
han-coding/skills/automated-test-planning/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260909.c5b4b91, committed Sep 9, 2026
- First version recorded
- Jul 31, 2026
- Size
- 26,892 bytes
- Repository stars
- 338
- License
- MIT
Produce a standalone test plan by analyzing code for test coverage gaps and edge cases. Use when you need to create, generate, or draft a test plan for a branch, need to analyze test coverage, or need to identify what tests to write for specific files or directories. Does not produce a plain-language plan for a person to run tests by hand — use manual-test-planning for that. Does not write test code — use tdd to implement behavior test-first. Does not refine existing plans — use…
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
## Operating Principles - **Test behavior through the public API, never internals.** Every recommended test verifies observable behavior at a public seam: the inputs a real caller supplies, the outputs and side effects they observe, and the interactions the unit has with the other objects and services it collaborates with. Do not recommend tests that reach into private methods, internal state, or implementation structure — those tests pin the _how_ and break on every refactor. When two designs would produce the same observable behavior, the test must pass for both. If a behavior can only be observed by inspecting internals, that is a signal the behavior belongs at a different seam, not a license to test the internal; note it and move the recommendation to the public boundary that exposes it. This is the depth ceiling: cover the critical behaviors a caller depends on, and stop. Do not specify tests for every branch, every private helper, or every intermediate value. - **YAGNI is a first-class operating principle for tests.** Apply the evidence-based YAGNI rule from …
Read the whole file at its exact version.
How to install
mdr add testdouble/han/automated-test-planning@sha256:d2fb1062826a8d32The line at the top of this page pins the label git:20260909.c5b4b91, 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_5asiwjlmfnkag3ox)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jul 31, 2026 and Sep 9, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260909.c5b4b91 latest | 2026-09-09 | c5b4b91 | 26,892 B | A | view · diff |
| git:20260820.2ab8254 | 2026-08-20 | 2ab8254 | 22,520 B | A | view · diff |
| git:20260819.cdb751e | 2026-08-19 | cdb751e | 20,892 B | A | view · diff |
| git:20260818.55bdb1d | 2026-08-18 | 55bdb1d | 20,829 B | A | view · diff |
| git:20260731.e79299f | 2026-07-31 | e79299f | 20,715 B | A | view · diff |
| git:20260731.d95412f | 2026-07-31 | d95412f | 20,920 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 (26892 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_5asiwjlmfnkag3ox GET https://markdownregistry.com/api/v1/resolve?ref=testdouble/han/automated-test-planning GET https://markdownregistry.com/api/v1/blob/d2fb1062826a8d32ef747cbe2ea40a06be2879c69e21fc561f0574a812994010
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.