goal-test SKILL.md skillA
goal-test from undefined-ui/second-brain-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add undefined-ui/second-brain-os/goal-test@git:20261007.c7fa35bPins git:20261007.c7fa35b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- undefined-ui/second-brain-os
- Path
plugins/agents-course/skills/goal-test/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261007.c7fa35b, committed Oct 7, 2026
- First version recorded
- Sep 29, 2026
- Size
- 3,027 bytes
- Repository stars
- 1,109
- License
- MIT
Turn a vague task into a testable definition of done and generate an executable goal-test script for it, optionally with a bounded retry loop around a headless agent. Use when the user wants to run an agent in a loop, asks how to know when an agent task is finished, or says a goal like "improve X" needs to become checkable. Do NOT use for building eval suites over many cases — that is evals-bootstrap.
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
# Write done as a script Theory: [The four parts of a loop](https://secondbrainos.dev/#/read/course-2-loop/the-four-parts) and the [goal test build page](https://secondbrainos.dev/#/read/track-loop/build-goal-test). "Improve the error handling" cannot terminate a loop, because nothing can ever say it is finished. The goal must be phrased so that a program — not a person, not the model — returns true or false against it. ## Workflow 1. **Extract the claim.** Ask what the user wants true at the end, then restate it as verifiable facts: which command exits 0, which file exists, which string appears, which number crosses which threshold. If a part cannot be checked by a program, say so and negotiate it down to what can. 2. **Prefer checks that already exist.** The test suite, the linter, the build, the type checker. A goal test that shells out to `make test` is better than one that reimplements it. 3. **Write `goal-test.sh`** (or `.py` if the checks are easier there) in the project root: runs every check, prints one line per check with pass/fail, exits 0 only when all pass. Keep it under ~40 lines; it must run in seconds and be safe to run repeatedly. …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/goal-test@sha256:bd786edfdd22e413The line at the top of this page pins the label git:20261007.c7fa35b, 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_55ucmczaxx7g65j5)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 29, 2026 and Oct 7, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.c7fa35b latest | 2026-10-07 | c7fa35b | 3,027 B | A | view · diff |
| git:20260929.fd3a523 | 2026-09-29 | fd3a523 | 3,057 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 (3027 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
undefined-ui/second-brain-os · 1,109 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_55ucmczaxx7g65j5 GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/goal-test GET https://markdownregistry.com/api/v1/blob/bd786edfdd22e413dcd80eac6575bf3a9cd2cb0efa1abec81452e81255bf1023
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.
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