typescript-collections SKILL.md skillA
typescript-collections from lu1sdv/skillsmd is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lu1sdv/skillsmd/typescript-collections@git:20261029.32a42cePins git:20261029.32a42ce in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lu1sdv/skillsmd
- Path
typescript-collections/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261029.32a42ce, committed Oct 29, 2026
- Size
- 6,936 bytes
- Repository stars
- 2
- License
- none declared
Use when choosing, implementing, or reviewing TypeScript collections and JavaScript runtime APIs: arrays, maps, sets, queues, heaps, linked structures, generators, text and binary processing, JSON, cloning, dates, or numeric data where ordering, equality, mutation, memory, or runtime compatibility matters.
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 Collections and Runtime APIs ## Establish the contract 1. Inspect the existing runtime, `tsconfig`, libraries, dependencies, and test commands before choosing APIs. 2. Record input size, key/value domain, ordering, equality, missing-value behavior, and ownership of mutable data. 3. Distinguish a known record shape from a dynamic dictionary; distinguish a materialized collection from a stream. 4. Define whether the result must preserve input objects, nested objects, insertion order, or serializable form. 5. Identify numerical bounds, character representation, byte order, and timezone whenever the operation depends on them. ## Choose the representation | Requirement | Starting choice | Verify | | --- | --- | --- | | Ordered sequence or LIFO stack | `Array<T>` | Mutation, sparse entries, removal costs | | Membership or deduplication | `Set<T>` | Identity versus value equality | | Dynamic keys and frequent lookup | `Map<K, V>` | Missing versus stored `undefined`; key identity | | Fixed named fields | Interface/type plus object | Runtime validation at external boundaries | …
Read the whole file at its exact version.
How to install
mdr add lu1sdv/skillsmd/typescript-collections@sha256:495926746503f293The line at the top of this page pins the label git:20261029.32a42ce, 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_duwpbzvdq4yekvxo)
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Versions
The registry has recorded 1 version of this file, committed on Oct 29, 2026.
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 (6936 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
lu1sdv/skillsmd · 2 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_duwpbzvdq4yekvxo GET https://markdownregistry.com/api/v1/resolve?ref=lu1sdv/skillsmd/typescript-collections GET https://markdownregistry.com/api/v1/blob/495926746503f293918fdc801fa5fe08bf0617b63becb60026d57cb71856440c
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.