Katana

katana

A sharp little toolkit of agent plugins. Each plugin is independently installable — take only what you need.

Plugin	What it does
guide	Toolkit map + composition guide (using-katana), injected at session start
work-folder	Work-folder convention (injected each session) + checkpoint skill for cross-session save/resume
deep-research	Workflow-orchestrated research over your knowledge base + web + named platform sources (declared in config); judgment-driven stop; cited report
memory	Verified facts as memory cards, auto-injected as an L1 index each session
obsidian-md	Obsidian Markdown writing rules grounded in official docs (obsidian-writing) — wikilinks, headings, frontmatter, embeds, callouts; every rule cites obsidian.md/help
wiki	LLM-maintained wiki engine — schema-driven zones, provenance-enforced ingest, deterministic query ladder, adversarial lint (Karpathy pattern: compile not re-derive; governance: immutable raw, provenance, adversarial lint, human gate)
retrieval	Multi-source information retrieval — intent→source routing, credibility ladder, fallback chains; web/reddit/twitter/code/github/gitlab/linear/feishu/search-note adapters
fpa	First Principles Analysis (first-principles) — decompose the goal into effect-level needs before touching the incumbent; every claimed hard constraint must name the event that would break it; rebuild only from the constraints that survive

Install (Claude Code)

/plugin marketplace add Dandi007/katana
/plugin install guide@katana
/plugin install work-folder@katana
/plugin install deep-research@katana
/plugin install memory@katana
/plugin install obsidian-md@katana
/plugin install wiki@katana
/plugin install retrieval@katana
/plugin install fpa@katana

Enable/disable any plugin independently with `/plugin`.

Install (OpenCode)

katana provides an OpenCode parity adapter that enables the same hook implementa