knowledge

A set of commands for maintaining a project knowledge base, including health checks, cleanup, statistics, and synchronisation with a separate repository. It checks for stale, duplicate, conflicting, or unsafe content.

In plain words
What is it for?
Use it to inspect knowledge-base health, find problems, rebuild its index, pull updates, or safely prepare and push approved knowledge changes.
Why use it?
It helps keep shared project knowledge accurate and reduces the risk of sending secrets or unrelated files to the knowledge repository.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/shenchangmin/cairnkit/knowledge
Clone the repo
git clone --depth 1 https://github.com/shenchangmin/cairnkit
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 626 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00018 $0.00626
Opus 5 $0.00009 $0.00313
Sonnet 5 $0.00004 $0.00125
Haiku 4.5 $0.00002 $0.00063

Measured yesterday against content hash bffa88f054f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

knowledge scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/knowledge.md · 40 lines

What it actually says

/knowledge

Operate on the knowledge base. Subcommands:

  • statscairn --root . knowledge stats — health report (zero DB, offline).
  • lintcairn --root . lint [--fix] — orphans/stale/duplicates/conflicts; --fix only rebuilds the index (content conflicts are surfaced, never auto-resolved).
  • synccairn --root . kbrepo pull, then inspect the knowledge contribution before any push. Pull resolves the current branch, upstream, and one raw fetch URL only from checkout-local Git config. Local paths become literal absolute operands; matching URL rewrites and remote or legacy-alias reinterpretation are rejected; successful output contains no remote paths. Before kbrepo push, use the repository's secret scanner when present and a conservative private-key/credential-pattern check with filenames only (never print matching values). The engine independently scans paths plus raw and decoded JSON/YAML values and string escapes, including unknown fields, and rejects dirty or outgoing-history paths outside its knowledge allowlist, non-regular/non-UTF-8 files, invalid entries, credential-shaped commit metadata, and common credential patterns. It rejects unresolved, shallow, grafted, or replacement history; stages only validated dirty paths; audits every commit and full tree relative to the live tip of exactly one push URL resolved only from checkout-local Git config; clears inherited repository-binding Git variables; rejects matching URL rewrites and remote/legacy-alias reinterpretation; disables Git hooks/tag following; pins the audited local object ID; and binds one current-branch ref update with a tip lease. If a possible secret is found or the contribution cannot be reviewed safely, stop without pushing. Only after an explicit publication request run cairn --root . kbrepo push --message .... With no remote it commits locally and reports pushed: false; if a configured push fails after commit, the command exits nonzero and reports that the validated local commit remains. Re-running the same command with a clean worktree audits and retries those pending commits after the remote is repaired.
  • Workflow INIT/ARCHIVE use kbrepo sync-in/sync-out to bridge project-local knowledge with the configured shared checkout. IDs/domains/shared paths use portable ASCII components; atomic writes and Git-tree audits reject case-aliased prefixes. Those commands never commit or push; this sync action is the separate explicit remote-publication path.
  • decaycairn --root . lifecycle decay — event-triggered staleness demotion.

Run lint+decay periodically (every N workflows, or when SessionStart reports it overdue).

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 40 lines · 18 tokens per session scan A bffa88f054f5

Subscribe to this mod's changes

knowledge is a command published in the GitHub repository shenchangmin/cairnkit (1 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 626 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.