r-util-code-map SKILL.md skillA
r-util-code-map from rfxn/rdf is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rfxn/rdf/r-util-code-map@git:20261024.45c1549Pins git:20261024.45c1549 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rfxn/rdf
- Path
adapters/claude-plugin/output/skills/r-util-code-map/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261024.45c1549, committed Oct 24, 2026
- First version recorded
- Sep 2, 2026
- Size
- 7,725 bytes
- Repository stars
- 20
- License
- GPL-2.0
Structural map of a source file — classes, functions, methods with.
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
Structural map of a source file — classes, functions, methods with
line ranges. Reduces context cost when an agent needs one symbol from
a large file by letting it read only the relevant line range.
## Arguments
- `$ARGUMENTS` — required: a file path, optionally followed by a
symbol name. Forms:
- `path/to/file.py` — full map of the file
- `path/to/file.py <symbol>` — locate a single class/function/method
- `path/to/file.py --threshold N` — override the 400-line default
(files below the threshold are returned verbatim; no map)
## When to Use
Call this from the main conversation before `Read` on any source file of
400 lines or more. The map is typically 20–40 lines. The agent then reads
the specific line range it needs with `Read offset=... limit=...` — often
70–85% fewer tokens than a full-file read. This is step 2 of the ladder in
[reference/read-discipline.md](../reference/read-discipline.md).
When the LSP tool is active for the file's language, its `documentSymbol`
operation returns the same map with exact ranges; prefer it. Subagents
cannot invoke skills, so they map files inline as the reference describes.
Do NOT call for:
…Read the whole file at its exact version.
How to install
mdr add rfxn/rdf/r-util-code-map@sha256:db339fdc3b455182The line at the top of this page pins the label git:20261024.45c1549, 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_7xwoeklb5bczwajz)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 2, 2026 and Oct 24, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261024.45c1549 latest | 2026-10-24 | 45c1549 | 7,725 B | A | view · diff |
| git:20261024.1352e8e | 2026-10-24 | 1352e8e | 7,692 B | A | view · diff |
| git:20260902.42a192d | 2026-09-02 | 42a192d | 7,392 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 (7725 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
rfxn/rdf · 20 stars · license GPL-2.0 · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7xwoeklb5bczwajz GET https://markdownregistry.com/api/v1/resolve?ref=rfxn/rdf/r-util-code-map GET https://markdownregistry.com/api/v1/blob/db339fdc3b4551822dbfcaa380a54a55f6f0df0c2cea51f923c1c4c91fca1fc0
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.