typescript-eval SKILL.md skillA
typescript-eval from vellum-ai/vellum-assistant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vellum-ai/vellum-assistant/typescript-eval@git:20260903.5802532Pins git:20260903.5802532 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vellum-ai/vellum-assistant
- Path
skills/typescript-eval/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260903.5802532, committed Sep 3, 2026
- First version recorded
- Mar 10, 2026
- Size
- 1,589 bytes
- Repository stars
- 1,483
- License
- MIT
Test TypeScript code snippets before persisting as skills.
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
# TypeScript Evaluation
When you need to test a TypeScript snippet before persisting it as a managed skill, use `bash` directly.
## Workflow
### 1. Write the snippet to a temp file
```
bash command="mkdir -p /tmp/vellum-eval && cat > /tmp/vellum-eval/snippet.ts << 'SNIPPET_EOF'
<your code here>
SNIPPET_EOF"
```
### 2. Run it with bun
```
bash command="bun run /tmp/vellum-eval/snippet.ts" timeout_seconds=10
```
### 3. For function-based testing
If the snippet exports a `default` or `run` function, write a runner script:
```
bash command="cat > /tmp/vellum-eval/runner.ts << 'RUNNER_EOF'
import * as mod from './snippet.ts';
const fn = (mod as any).default ?? (mod as any).run;
const input = {}; // mock input
const result = await fn(input);
console.log(JSON.stringify(result, null, 2));
RUNNER_EOF"
```
Then run the runner:
```
bash command="bun run /tmp/vellum-eval/runner.ts" timeout_seconds=10
```
### 4. Clean up
```
bash command="rm -rf /tmp/vellum-eval/"
```
## Guidelines
- **Iteration limit:** Max 3 attempts before asking the user for guidance.
- **After successful test:** Persist with `scaffold_managed_skill` only after explicit user consent.
…Read the whole file at its exact version.
How to install
mdr add vellum-ai/vellum-assistant/typescript-eval@sha256:fd5a1e8c4546404aThe line at the top of this page pins the label git:20260903.5802532, 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_tq6s5hiudhx4gefb)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 10, 2026 and Sep 3, 2026, about one every 59 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260903.5802532 latest | 2026-09-03 | 5802532 | 1,589 B | A | view · diff |
| git:20260603.ff934d9 | 2026-06-03 | ff934d9 | 1,673 B | A | view · diff |
| git:20260315.3bcdc64 | 2026-03-15 | 3bcdc64 | 1,645 B | A | view · diff |
| git:20260310.0ceb0a0 | 2026-03-10 | 0ceb0a0 | 1,671 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 (1589 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
vellum-ai/vellum-assistant · 1,483 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tq6s5hiudhx4gefb GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/typescript-eval GET https://markdownregistry.com/api/v1/blob/fd5a1e8c4546404a6b6c99772a8168a0a84bf4bbb86c7d70935548563579a1a3
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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