cratis-chronicle-mcp-inspection

cratis-chronicle-mcp-inspection is a skill for Claude Code, Codex from Cratis/AI. It costs 86 tokens per session (739 once invoked), scanned A, original, MIT.

Guidance for classifying requests to inspect a running Chronicle event store through MCP. Chronicle is a system that stores event histories, and the guidance only interprets redacted output supplied by the user.

In plain words
What is it for?
Use it to assess whether a Chronicle inspection request is read-only, effectful, or unknown, and to identify the store and data scope that would need confirmation.
Why use it?
It prevents unverified tools or prompts from being used to access live operational data and explains why unknown operations remain blocked.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to assess whether a Chronicle inspection request is read-only, effectful, or unknown, and to identify the store and data scope that would need confirmation.

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Install with agentmods
npx agentmods add skills/cratis/ai/cratis-chronicle-mcp-inspection
View source ↗ Cratis/AI
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.

Any agent
npx skills add Cratis/AI --skill cratis-chronicle-mcp-inspection
Clone the repo
git clone --depth 1 https://github.com/Cratis/AI

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for cratis-chronicle-mcp-inspection

README.md
[![agentmods](https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-mcp-inspection/github.svg)](https://agentmods.dev/skills/cratis/ai/cratis-chronicle-mcp-inspection)
Your own site
<a href="https://agentmods.dev/skills/cratis/ai/cratis-chronicle-mcp-inspection"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-mcp-inspection/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.

agentmods 80×15 button for cratis-chronicle-mcp-inspection

Your own site · 80×15
<a href="https://agentmods.dev/skills/cratis/ai/cratis-chronicle-mcp-inspection"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-mcp-inspection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 739 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00086 $0.00739
Opus 5 $0.00043 $0.00369
Sonnet 5 $0.00017 $0.00148
Haiku 4.5 $0.00009 $0.00074

Measured 8d ago against content hash 2dd58bf9e42a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cratis-chronicle-mcp-inspection 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 8d 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.

.cratis/ai/skills/cratis-chronicle-mcp-inspection/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chronicle MCP inspection guidance

Treat access to a running Chronicle store as access to live operational data. Classify the request before discussing a tool, and do not infer safety from a name, description, or protocol hint.

Current authority boundary

This package has no admitted Chronicle MCP tool or prompt. The upstream source contract is unverified, so every tool and prompt remains evidence-blocked.

Read the generated classifications before answering:

Do not invoke, simulate, install, configure, or provide an invocation payload for a tool or prompt while the observational inventory is empty.

What this skill can do

  • Classify the user's intent as observational, effectful, or unknown.
  • Explain why unknown or incompletely evidenced behavior remains blocked.
  • Help the user confirm the intended store, event store, namespace, and data sensitivity before any future observational access.
  • Interpret output the user has already supplied after they have redacted secrets, personal data, business payloads, and identifying metadata.
  • Recommend narrowing a request by identifier, type, sequence range, or page when that can reduce data exposure without inventing a tool signature.

Classification rules

Use these classes independently from package trust:

  • Classification-only — reasoning about a request or already-redacted output; no external call.
  • Observational — a bounded read proven by immutable implementation, schema, effect, output-classification, and redaction evidence.
  • Effectful — creates, changes, deletes, executes, publishes, accesses credentials, or transmits unbounded or open-world data.
  • Unknown — evidence is absent, stale, incomplete, or conflicting.

Only an observational subject with a passive-allowed disposition may ever be selected. Effectful and unknown subjects remain blocked. A read-only annotation or read-sounding name is corroboration at most; implementation evidence owns the classification.

Read the full file on GitHub · 80 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 80 lines · 86 tokens per session scan A 2dd58bf9e42a

Subscribe to this mod's changes

cratis-chronicle-mcp-inspection is a skill published in the GitHub repository Cratis/AI (2 stars, last pushed yesterday), licensed MIT. It adds 86 tokens to every session and 739 once invoked, about $0.0004 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 2026-09-03.

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