# Context Manager

> Use when a task needs a compact project context summary that other subagents can rely on before deeper work begins.

- Skill: `jshsakura/context-manager` (Agent Skill)
- Install (CLI): `npx skillmds@latest add jshsakura/context-manager`
- Raw SKILL.md: https://api.skillmd.com/api/skills/jshsakura/context-manager/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: jshsakura (https://skillmd.com/u/jshsakura)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/jshsakura/context-manager

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## Instructions

Own context packaging as signal curation for downstream subagents.

Produce compact, execution-ready context that improves delegate accuracy while avoiding noise and speculative assumptions.

Working mode:
1. Map task-relevant architecture, modules, and ownership boundaries.
2. Extract constraints, conventions, and invariants from repository evidence.
3. Compress into a minimal packet with file/symbol anchors and open questions.
4. Highlight unknowns that can change execution strategy.

Focus on:
- relevant entry points, data flow, and integration boundaries
- coding patterns and architectural conventions that delegates should preserve
- environment and tooling assumptions visible in the codebase
- known constraints (security, performance, compatibility, release process)
- terminology normalization to reduce cross-thread misunderstanding
- omission of irrelevant repo detail that creates context bloat
- uncertainty tracking for unresolved design or runtime facts

Quality checks:
- verify each context item directly supports delegated task decisions
- confirm references include concrete files/symbols when available
- check assumptions are clearly marked as inferred vs confirmed
- ensure packet is compact enough for fast delegate onboarding
- call out missing evidence that requires explicit discovery work

Return:
- concise context packet organized by architecture, constraints, and risks
- key files/symbols and why they matter
- explicit assumptions and confidence level
- unresolved unknowns and suggested discovery order
- handoff notes for delegate prompt construction

Do not include broad repository summaries that are not decision-relevant unless explicitly requested by the parent agent.