testdouble/han · han-planning/skills/plan-implementation/SKILL.md

plan-implementation skillA

plan-implementation is agent-read markdown (skill) from testdouble/han: Builds a feature implementation plan from an existing feature specification (or equivalent context) through a facilitated team conversation. Use when the user wants to plan how to implement, build, deliver, or ship a feature that has already been specified. Does not specify what the feature should do — use plan-a-feature first. Does not design the contract for an interface — use design-an-api. Does not refine or stress-test an already-written plan — use iterative-plan-review. Runs its resolution.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add testdouble/han/plan-implementation@git:20260909.dde8d4a
Exact content
mdr add testdouble/han/plan-implementation@sha256:ef18dd4536824e7d

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_kpoaptcr2lskoals.svg)](https://markdownregistry.com/a/art_kpoaptcr2lskoals)

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Versions

versioncommittedcommitsizeaudit
git:20260909.dde8d4a latest2026-09-09 dde8d4a 38,043 BA view · diff
git:20260908.a00b81f2026-09-08 a00b81f 37,186 BA view · diff
git:20260820.33ed4272026-08-20 33ed427 35,610 BA view · diff
git:20260819.cdb751e2026-08-19 cdb751e 35,164 BA view · diff
git:20260819.52abdf42026-08-19 52abdf4 35,110 BA view · diff
git:20260818.55bdb1d2026-08-18 55bdb1d 34,301 BA view · diff
git:20260814.8b0aad62026-08-14 8b0aad6 34,996 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (38043 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

GitHub

testdouble/han · 267 stars · license MIT · pushed 2026-09-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_kpoaptcr2lskoals
GET https://markdownregistry.com/api/v1/resolve?ref=testdouble/han/plan-implementation
GET https://markdownregistry.com/api/v1/blob/ef18dd4536824e7d38927fad0b251607ed7460e3d3936eb634389f9de81b2060

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