sentinel

name	sentinel
description	Monitor Anthropic public changes — docs, SDK releases, API updates, status incidents. Use to check for recent changes that may affect this project's tooling, dependencies, or AI-native output capabilities.
version	0.1.0
user-invocable	true
allowed-tools	Bash(curl *) Bash(gh *) Bash(jq *) Bash(npm *) Bash(pip *) Read Write WebFetch WebSearch Grep Glob
argument-hint	[source-filter: docs|sdk|status|all]

Sentinel — Anthropic Change Monitor

Continuously monitor Anthropic's public surfaces for changes that affect Palimpsest.

Source Priority

Tier 0 (check always)

• https://docs.anthropic.com/en/release-notes/overview — Platform release notes
• https://docs.anthropic.com/en/api/messages — API reference
• https://status.claude.com/ — Operational status
• https://github.com/anthropics — GitHub org: SDK repos, claude-code, skills
• https://platform.claude.com/llms.txt — LLM-optimized doc index

Tier 1 (check on demand)

• https://pypi.org/project/anthropic/ — Python SDK releases
• https://www.npmjs.com/package/@anthropic-ai/sdk — TypeScript SDK releases
• https://www.npmjs.com/package/@anthropic-ai/claude-code — Claude Code releases
• https://docs.anthropic.com/en/release-notes/claude-code — Claude Code notes

Tier 2 (supplementary)

• https://www.anthropic.com/news — Official announcements
• https://www.anthropic.com/engineering — Engineering blog

Filter

If $ARGUMENTS is provided, filter to that source category. Otherwise check all Tier 0.

Procedure

1. Fetch each source using appropriate method:

   • GitHub: gh api for releases and repo events
   • Docs: curl with ETag caching
   • Registries: JSON API endpoints

2. Parse changes since last check (or last 7 days if first run).

3. Classify each change:

   • breaking — API/SDK breaking changes
   • deprecation — Deprecated features/models
   • security — Security fixes or advisories
   • feature — New capabilities
   • incident — Status page incidents
   • docs — Documentation updates

4. Score impact on Palimpsest:

   • Does it affect our Rust dependencies? (SDK changes)
   • Does it affect our AI-native output format? (API changes)
   • Does it affect our tooling? (Claude Code changes)
   • Does it affect our development workflow? (Skills/hooks changes)

5. Report:

Sentinel Report — {date}
========================

{count} changes detected across {sources} sources

HIGH IMPACT:
- [breaking] SDK v4.x removes streaming beta header — affects AI output pipeline
- [incident] Claude API elevated errors 2026-04-07 — resolved

MEDIUM IMPACT:
- [feature] Claude Code v2.1.101 adds /team-onboarding command
- [docs] API reference updated: new tool_choice parameter

LOW IMPACT:
- [docs] Best practices guide updated

Recommended actions:
1. ...
2. ...