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 skills add Jartan-LLC/grimoire --skill claude-configgit clone --depth 1 https://github.com/Jartan-LLC/grimoireWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jartan-llc/grimoire/claude-config)<a href="https://agentmods.dev/skills/jartan-llc/grimoire/claude-config"><img src="https://agentmods.dev/badge/skills/jartan-llc/grimoire/claude-config/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jartan-llc/grimoire/claude-config"><img src="https://agentmods.dev/badge/skills/jartan-llc/grimoire/claude-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00017 | $0.01104 |
| Opus 5 | $0.00009 | $0.00552 |
| Sonnet 5 | $0.00003 | $0.00221 |
| Haiku 4.5 | $0.00002 | $0.00110 |
Grade A, and why
claude-config 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 10d 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.
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.
How it starts
The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Configuration Primitives
Three distinct purposes in .claude/. Each has a clear job -- never conflate them.
Agents are their own file type. Commands and skills are both SKILL.md files,
told apart by who is allowed to invoke them.
Agents = Roles
An agent defines who you are. It shapes focus, identity, and constraints for a subagent.
- Role identity ("You are a senior backend reviewer")
- Tool and permission constraints
- What the agent cares about (evaluation criteria, output format, confidence thresholds)
- Runs in an isolated subagent context
Agents are not workflows. They define a lens for approaching work, not steps to follow. A backend-reviewer says "you care about async correctness and session handling" -- not "Step 1: read the diff."
Good: Role identity, focus areas, evaluation criteria, output format, what to read for context. Bad: Step-by-step procedures, bash scripts, workflow orchestration.
Skills = Context and Knowledge
A skill defines what you know. It provides conventions, recommendations, how-tos, and reference material.
- Reference knowledge ("Here's how migrations work in this project")
- Conventions ("Module files follow this structure")
- Recommendations ("When writing docs, prefer tables over prose")
- Templates and examples when they're the core value
Skills are not workflows. They provide knowledge for good decision-making.
A skill MAY include a sequence when it's critical reference -- but as illustrative guidance, not a script to execute.
Declare user-invocable: false. Claude loads a skill when it's relevant; the user never reaches for it by name.
Good: Conventions, patterns, templates, recommendations, how-tos, reference material. Bad: Rigid step-by-step procedures, orchestration logic, state management.
Commands = Workflows
A command defines what to do. An explicit, purposeful sequence with a clear trigger.
- Specific workflow with clear start and end
- Defines what happens in what order
- Has a trigger (
/command-name) and expected output - May include specific commands to run, but skills inform the how
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.
- 10d ago First seen · 109 lines · 17 tokens per session scan A a6245a1999e7
claude-config is a skill published in the GitHub repository Jartan-LLC/grimoire (2 stars, last pushed 3d ago), licensed MIT. It adds 17 tokens to every session and 1,104 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.
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