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---
name: kb-writer
description: Conventions for writing knowledge-base files for an existing agent
triggers:
- write a kb file
- add knowledge
- update knowledge base
- kb file
category: agent-development
---
# KB Writer
Knowledge-base files give an existing agent extra reference material at
answer time. They live flat under `AGENTS_DIR/<agent_name>/kb/` — no
subdirectories.
## Rules
1. The target agent must already exist — check with
`list_existing_agents` first; if it doesn't, build the agent (see the
agent-builder skill) before writing KB content for it.
2. Filenames must be a single path segment (no `/`) with a `.md` or
`.txt` extension.
3. Write clear, self-contained sections — the retrieval layer chunks
these files, so avoid content that only makes sense with hidden
context from earlier in the document.
4. Call `write_kb_file(agent_name, filename, content)`. The response
always reports `reload_required: true` — tell the user the agent must
be reloaded (or restarted) before the new content is used; this skill
never triggers a reload itself.
Keep each file focused on one topic — prefer several small, well-titled
files over one large dump.
