test-json-sql-join SKILL.md skillA
test-json-sql-join from bdambrosio/cognitive_workbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bdambrosio/cognitive_workbench/test-json-sql-join@git:20260122.7c367d3Pins git:20260122.7c367d3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bdambrosio/cognitive_workbench
- Path
src/saved_plans/test-json-sql-join/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260122.7c367d3, committed Jan 22, 2026
- First version recorded
- Nov 25, 2025
- Size
- 427 bytes
- Repository stars
- 10
- License
- MIT
Tests join primitive (INNER JOIN).
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
# Test Join Primitive **Self-contained:** Creates test data internally **Input:** - Creates $papers: A, B, C, D - Creates $authors: A (Alice), B (Bob), E (Eve) **Operation:** Inner join on id field **Expected Output:** $joined collection with 2 items (A and B have matches) - Paper A + Author Alice - Paper B + Author Bob
Read the whole file at its exact version.
How to install
mdr add bdambrosio/cognitive_workbench/test-json-sql-join@sha256:c37ce8d45618d4cfThe line at the top of this page pins the label git:20260122.7c367d3, 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_qtf3shosq4mcip76)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Nov 25, 2025 and Jan 22, 2026, about one every 58 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260122.7c367d3 latest | 2026-01-22 | 7c367d3 | 427 B | A | view · diff |
| git:20251125.79ed510 | 2025-11-25 | 79ed510 | 437 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 (427 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
bdambrosio/cognitive_workbench · 10 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qtf3shosq4mcip76 GET https://markdownregistry.com/api/v1/resolve?ref=bdambrosio/cognitive_workbench/test-json-sql-join GET https://markdownregistry.com/api/v1/blob/c37ce8d45618d4cf4c01da112f7c819a1b7dfcb5c60b32ad25ec79b59b2a5ee8
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.