[workspace-split] Phase 7: Extract high-level crates (plugins, teams, daemon, commands, ipc)

[yaohaowei0914]

Part of #68. Target branch: V1. Depends on #75.

Scope

Extract high-level crates.

• cc-plugins ← src/plugins/ (4 files, 1,911 LOC)
• cc-teams ← src/teams/ (11 files, 3,164 LOC)
• cc-daemon ← src/daemon/ (11 files, 1,487 LOC)
• cc-commands ← src/commands/ (53 files, 12,626 LOC) — second-biggest crate
• cc-ipc ← src/ipc/ (21 files, 4,724 LOC)

Special considerations

• cc-commands has 53 separate command files, but each is <300 LOC. After measuring: if commands crate is a bottleneck, sub-split by domain:
  • cc-commands-session, cc-commands-review, cc-commands-daemon, etc.
• cc-daemon embeds the Team Memory HTTP proxy — keep the Bun server spawn logic intact
• cc-ipc is the spine between headless/daemon modes and the frontend; exhaustive integration testing required

Acceptance

• Five new crates
• E2E tests: headless mode (JSONL over stdio), daemon mode (HTTP/SSE), Team Memory GET/PUT all pass
• Slash-command dispatch parity with pre-extraction

[yaohaowei0914]

Progress update (PR #86)

PR #86 publishes the Phase 7 crate scaffold. The full Phase 7 source moves are blocked on the remaining Phase 6 work — every Phase 7 crate transitively depends on cc-engine / cc-tools / the Tool trait, none of which are fully populated yet.

Done in #86

All five Phase 7 crates exist as workspace members with real Cargo.toml and stub lib.rs:

• cc-plugins
• cc-teams
• cc-daemon
• cc-commands
• cc-ipc

Each stub lib.rs documents which cycle-causing tool files will travel with it when the physical source move lands:

Crate	Brings along
cc-teams	tools/send_message.rs, tools/team_spawn.rs
cc-ipc	tools/system_status.rs
cc-lsp-service (Phase 6)	tools/lsp.rs

The cycle-breaking in PR #86 also lands two items that Phase 7 specifically needs:

• cc_types::agent_channel / agent_events / agent_types — cc-ipc will re-export these and the physical ipc code moves over cleanly
• cc_types::teams::{TeamContext, TeammateInfo} — cc-teams inherits the re-export shim at src/teams/types.rs, so the ~7 existing call sites compile unchanged during the move

Blocking dependencies

Phase 7 source moves follow Phase 6 completion (tracked in #75). The unblock order:

1. [workspace-split] Phase 6: Extract core crates (engine, query, tools, lsp-service) #75: move src/engine/, src/query/, src/tools/, src/lsp_service/ into their crates
2. Then [workspace-split] Phase 7: Extract high-level crates (plugins, teams, daemon, commands, ipc) #76: move src/plugins/, src/teams/, src/daemon/, src/commands/, src/ipc/

Remaining for #76

• Physical move src/plugins/ → crates/cc-plugins/src/
• Physical move src/teams/ + tools/send_message.rs + tools/team_spawn.rs → crates/cc-teams/src/
• Physical move src/daemon/ → crates/cc-daemon/src/
• Physical move src/commands/ → crates/cc-commands/src/ (largest — ~12.6k LOC)
• Physical move src/ipc/ + tools/system_status.rs → crates/cc-ipc/src/
• E2E parity: headless JSONL, daemon HTTP/SSE, Team Memory GET/PUT, slash-command dispatch

Design doc updated: docs/superpowers/specs/2026-04-20-workspace-split-design.md.