build-one SKILL.md skillA
build-one from tmusser/ai-engineering-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tmusser/ai-engineering-skills/build-one@git:20261101.bfc03f8Pins git:20261101.bfc03f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tmusser/ai-engineering-skills
- Path
skills/build-one/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261101.bfc03f8, committed Nov 1, 2026
- First version recorded
- May 18, 2026
- Size
- 5,184 bytes
- Repository stars
- 6
- License
- MIT
Implement exactly one planned slice after scope is frozen, without exceeding the spec ceiling or carrying known analysis debt into the build.
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
# Build One ## Purpose Implement exactly one planned slice without expanding the behavioral contract or building through a known stale/required analysis checkpoint. ## When to use Use after a task is selected and scope is frozen. ## Inputs - `SPEC.md` - `PLAN.md` - `TODO.md` - `SCOPE.md` or the active scope boundary - Current repo status and frozen Git base - Analysis checkpoint when present in `HANDOFF.md` or other current state ## Workflow 1. Read `SPEC.md`, `PLAN.md`, and `TODO.md`. 2. Select one task. 3. Confirm the scope boundary. When `SCOPE.md` and `scripts/scope_gate.py` exist, run the scope gate against the frozen base before the first new implementation write. Existing `FAIL` or unresolved `REVIEW_REQUIRED` state blocks further edits. 4. Perform the cheap `analyze-mini` eligibility check using artifacts already loaded for this build: - `REQUIRED` or `STALE` checkpoint -> invoke `analyze-mini` before editing. - `FRESH` checkpoint -> confirm its task-defining inputs still match current state; if not, mark it `STALE` and invoke `analyze-mini`. - missing checkpoint or `NOT_NEEDED` -> invoke `analyze-mini` only when a current trigger exists. …
Read the whole file at its exact version.
How to install
mdr add tmusser/ai-engineering-skills/build-one@sha256:e6df0e2ff2c73c1dThe line at the top of this page pins the label git:20261101.bfc03f8, 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_p5hyb3nzsvxqahpl)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between May 18, 2026 and Nov 1, 2026, about one every 28 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261101.bfc03f8 latest | 2026-11-01 | bfc03f8 | 5,184 B | A | view · diff |
| git:20261008.67190ab | 2026-10-08 | 67190ab | 4,556 B | A | view · diff |
| git:20260806.24a682d | 2026-08-06 | 24a682d | 4,029 B | A | view · diff |
| git:20260727.5a2073a | 2026-07-27 | 5a2073a | 3,034 B | A | view · diff |
| git:20260726.fc1ad04 | 2026-07-26 | fc1ad04 | 1,905 B | A | view · diff |
| git:20260626.1692c35 | 2026-06-26 | 1692c35 | 1,241 B | A | view · diff |
| git:20260518.0d37b7d | 2026-05-18 | 0d37b7d | 992 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 (5184 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
tmusser/ai-engineering-skills · 6 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_p5hyb3nzsvxqahpl GET https://markdownregistry.com/api/v1/resolve?ref=tmusser/ai-engineering-skills/build-one GET https://markdownregistry.com/api/v1/blob/e6df0e2ff2c73c1d1a38def65535356b62de1038ea3093cbf96837bc52157e55
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.