knowledge_index_skill SKILL.md skillA
knowledge_index_skill from npc-worldwide/npcpy is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add npc-worldwide/npcpy/knowledge_index_skill@git:20260620.da69752Pins git:20260620.da69752 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- npc-worldwide/npcpy
- Path
skills/knowledge_index_skill/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260620.da69752, committed Jun 20, 2026
- Size
- 3,082 bytes
- Repository stars
- 1,524
- License
- MIT
"Skill for using the KnowledgeIndex registry to discover which directories\.
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
# knowledge_index_skill Skill for using the KnowledgeIndex registry to discover which directories contain `.knowledge.yaml` files without walking the filesystem. KnowledgeIndex is a lightweight SQLite cache. It maps directory paths to file metadata (mtime, memory_count, link_count). The database path is caller-provided — npcpy does not hardcode a default. Key operations: - Upsert a directory after writing to its YAML: `upsert_directory(db_path, directory, memory_count, link_count)` - List known directories: `get_known_directories(db_path, min_mtime=None)` - Full rescan of a tree: `scan_root(db_path, root, max_depth=5)` - Remove a stale directory: `remove_directory(db_path, directory)` Typical flow: 1. Call `scan_root(db_path, root="/home/user/projects", max_depth=5)` to populate the index with every `.knowledge.yaml` found. 2. Query `get_known_directories(db_path)` to get a list of directories with memory/link counts. 3. For each directory of interest, instantiate `KnowledgeStore(directory)` and call `load()` or `build_context()`. …
Read the whole file at its exact version.
How to install
mdr add npc-worldwide/npcpy/knowledge_index_skill@sha256:a05b917f6ab616acThe line at the top of this page pins the label git:20260620.da69752, 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_5ohcsjqxlaqyihci)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 20, 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 (3082 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
npc-worldwide/npcpy · 1,524 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ohcsjqxlaqyihci GET https://markdownregistry.com/api/v1/resolve?ref=npc-worldwide/npcpy/knowledge_index_skill GET https://markdownregistry.com/api/v1/blob/a05b917f6ab616acb052fe620bd2009fb3ccabe70481bd5e32914683efa950f3
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.