writing-typescript SKILL.md skillA
writing-typescript from alexei-led/cc-thingz is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexei-led/cc-thingz/writing-typescript@git:20260928.3135f26Pins git:20260928.3135f26 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexei-led/cc-thingz
- Path
src/skills/writing-typescript/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260928.3135f26, committed Sep 28, 2026
- First version recorded
- Jun 27, 2026
- Size
- 2,602 bytes
- Repository stars
- 38
- License
- MIT
Idiomatic TypeScript development. Use when writing TypeScript code, Node.js.
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 Development Follow the repository's TypeScript version, tsconfig, package manager, framework, and test runner. In a monorepo, work from the nearest `package.json` and `tsconfig.json` and name the package you chose. ## Defaults - Never weaken compiler options to pass a check. New configs enable `strict`, `noUncheckedIndexedAccess`, `exactOptionalPropertyTypes`, `useUnknownInCatchVariables`, `noImplicitOverride`, and `noFallthroughCasesInSwitch`. - Treat HTTP responses, JSON, env, storage, form data, and SDK output as `unknown`. Narrow at the boundary with the project's schema library or a small type guard; never cast `await res.json()` to a domain type. - Avoid `any`, `as` casts, non-null `!`, and broad index signatures unless a runtime check or an external type gap justifies them. - Discriminated unions for variants and async state, with an exhaustive `never` check. Literal unions or `as const` arrays instead of new enums. `satisfies` for config maps. - Result unions for recoverable failures callers must branch on; throw `Error` instances otherwise. …
Read the whole file at its exact version.
How to install
mdr add alexei-led/cc-thingz/writing-typescript@sha256:44c66ca65fa1433eThe line at the top of this page pins the label git:20260928.3135f26, 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_fdpvpxwydppexc3g)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jun 27, 2026 and Sep 28, 2026, about one every 19 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260928.3135f26 latest | 2026-09-28 | 3135f26 | 2,602 B | A | view · diff |
| git:20260914.cab7679 | 2026-09-14 | cab7679 | 4,426 B | A | view · diff |
| git:20260716.29b4d22 | 2026-07-16 | 29b4d22 | 4,002 B | A | view · diff |
| git:20260702.33bfc18 | 2026-07-02 | 33bfc18 | 4,005 B | B | view · diff |
| git:20260629.26ad5b3 | 2026-06-29 | 26ad5b3 | 3,902 B | B | view · diff |
| git:20260627.a4cca8d | 2026-06-27 | a4cca8d | 3,352 B | B | 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 (2602 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
alexei-led/cc-thingz · 38 stars · license MIT · pushed 2026-10-25 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_fdpvpxwydppexc3g GET https://markdownregistry.com/api/v1/resolve?ref=alexei-led/cc-thingz/writing-typescript GET https://markdownregistry.com/api/v1/blob/44c66ca65fa1433e639a87fb77dde65bdee7c746f613c43622a2c5b72a529493
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.