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.
npx agentmods add skills/abilityai/abilities/kb-agentnpx skills add Abilityai/abilities --skill kb-agentgit clone --depth 1 https://github.com/Abilityai/abilitiesWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00052 | $0.18175 |
| Opus 5 | $0.00026 | $0.09087 |
| Sonnet 5 | $0.00010 | $0.03635 |
| Haiku 4.5 | $0.00005 | $0.01818 |
Grade D, and why
install-kb-agent scanned grade D with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
# Container-only config: the Trinity base image bakes ~/.claude/settings.json with Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf "$TMPDIR" How it starts
The opening of the file, as written. The whole thing — 1,523 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Install KB Agent
ℹ️ First, set expectations: before anything else, print one short line with this skill's version and its most recent change — the top entry of
metadata.changelogabove — e.g.install-kb-agent vX.Y — recent: <summary>. Then proceed.
Create a Cornelius-shaped knowledge-base agent powered by Claude Code, customized to a specific domain (community management, CS research, clinical research, legal analysis, personal KB, or custom), and compatible with Trinity for remote deployment, scheduling, and orchestration.
What you'll get:
- A Brain Dependency Graph ontology (
<agent>-graph.yaml) tuned to the domain - A 7-layer vault scaffold (signals → impressions → insights → frameworks → lenses → syntheses → indices)
- The cornelius local-brain-search Python machinery cloned in — FAISS vector search, spreading activation, coherence engine
- Domain-appropriate subagents (vault-manager + extractors + discovery + synthesis)
- KB-core scheduled skills:
/coherence-sweep,/compute-lifecycle,/detect-tensions,/refresh-index,/propagate-change - Domain-specific skills tailored to the preset (or blank if custom)
- Onboarding tracker, Trinity dashboard, and all standard agent files
Built by Ability.ai. The agent this wizard generates is a specialization of Cornelius — the reference insight-harvester KB agent.
Background: Why a Structured Interview
Every KB agent shares the same skeleton. What differs across domains is how six slots get filled:
- Atomic unit — the smallest indivisible thing the agent captures
- Entity types — the taxonomy of first-class nouns beyond the atomic unit
- Edge types — how entities connect, with direction, mode, and decay
- Mode model — which entities are generative (prescriptive) vs reflective (descriptive)
- Trigger topology — edit-driven vs event-driven vs hybrid
- Lifecycle signals — observed behaviors that promote/demote entities
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.
- 2d ago First seen · 1,523 lines · 52 tokens per session scan D 9ddbf4b77deb
install-kb-agent is a skill published in the GitHub repository Abilityai/abilities (11 stars, last pushed 14d ago), licensed MIT. It adds 52 tokens to every session and 18,175 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it D with 2 findings (reads agent configuration directories, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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