dev-session（开发会议）

Dev Session

Manage multi-session development work with structured progress files, checkpoint commits, and durable learnings. Produces SESSION.md files that survive context compaction and enable clean handoff between sessions.

Operating Modes

Mode 1: Start Session

When: Beginning multi-step work, "start session", "new session for [feature]"

1. Check if SESSION.md already exists in the project root

- If yes: read it and ask whether to continue the existing session or start fresh - If no: create from template (see references/session-template.md)

1. Pre-fill fields:

- Project: from CLAUDE.md or directory name - Branch: from git branch --show-current - Last Updated: current timestamp - Phase: ask user what they're working on

1. Read the project's CLAUDE.md to orient on context
2. Present a brief summary: "Session started. Working on [phase] on branch [branch]."

Mode 2: Checkpoint

When: "checkpoint", major milestone reached, before risky changes, context getting large

1. Update SESSION.md:

- Add completed items to What Works - Update Current Position with exact location (file paths, line numbers) - Clear resolved Blockers, add new ones - Write concrete Resume Instructions

1. Capture learnings:

- If any patterns, gotchas, or commands were discovered during work, add them to CLAUDE.md - One line per concept — concise, not verbose

1. Git checkpoint: git add -A && git commit -m "WIP: [what was accomplished]"
2. Record the commit hash in SESSION.md under Checkpoint
3. Confirm: "Checkpointed at [hash]. SESSION.md updated."

Mode 3: Resume Session

When: "resume", "continue from last session", "where were we", start of a new conversation

1. Read SESSION.md — if missing, inform user and offer to start a new session
2. Read the project's CLAUDE.md for context
3. Check what's changed since the recorded checkpoint: git log --oneline [checkpoint-hash]..HEAD
4. Check for uncommitted changes: git status
5. Present a summary:

- Phase: what we were working on - Position: where we left off - Changes since: any commits or modifications since checkpoint - Blockers: anything unresolved - Suggested next step: first item from Resume Instructions

Mode 4: Wrap Session

When: "wrap session", "done for now", "save progress", ending a session

1. Run a full checkpoint (Mode 2)
2. Review SESSION.md for completeness:

- Are Resume Instructions concrete enough for a fresh session to continue? - Is Current Position specific (file paths, not vague descriptions)?

1. If the phase is complete:

- Collapse the phase summary to 2-3 lines - Clear Resume Instructions or note "Phase complete — ready for next phase"

1. Confirm: "Session wrapped. Resume with 'resume session' next time."

When to Use

SESSION.md Principles

• Track progress, not architecture — SESSION.md is a work log, not project documentation
• Concrete over vague — "Resume at src/auth.ts:42, implement token refresh" beats "Continue auth work"
• Collapse completed work — finished phases become 1-2 line summaries
• Keep under 100 lines — if it's longer, collapse more aggressively

Autonomy Rules

• Just do it: Read SESSION.md, read CLAUDE.md, check git status/log, present summaries
• Brief confirmation: Creating new SESSION.md, committing WIP checkpoints
• Ask first: Overwriting an existing SESSION.md, deleting session data

Reference Files