flynn/.planning/phases/01-daemon-decomposition/01-03-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	duration	completed
01-daemon-decomposition	03	infra	daemon refactoring composition-root services-extraction typescript	phase provides 01-01 models.ts, memory.ts, tools.ts extraction reducing daemon/index.ts to ~458 lines phase provides 01-02 routing.ts, agents.ts, channels.ts extraction reducing daemon/index.ts to ~385 lines	src/daemon/services.ts — skills, MCP, system prompt, pairing manager, gateway server, service startup, signal handlers src/daemon/index.ts as thin 140-line composition root — imports, wiring, lifecycle, DaemonContext Phase 1 complete: daemon fully decomposed into 8 focused modules	02-config-overlays 03-live-ops-dashboard	added patterns Callback-based late binding: getChannelAgents() callback passed to gateway for deferred token usage reporting Type-only imports for values only used in DaemonContext type definition Section dividers with Unicode box-drawing comments for scannable composition root	created modified src/daemon/services.ts src/daemon/index.ts	Grouped skills, MCP, pairing, gateway, system prompt, and service startup into one services.ts rather than multiple tiny modules — related service-init code stays together Used getChannelAgents callback for late-binding channel agents into gateway token usage reporting Converted ModelRouter, McpManager, SkillRegistry, SkillInstaller, GatewayServer to type-only imports in index.ts	Composition root pattern: daemon/index.ts is pure wiring — import → init → connect → return Services module groups service initialization that shares config/lifecycle dependencies	~8min	2026-02-10

Phase 1 Plan 3: Daemon Composition Root Summary

Extracted services/skills/MCP/gateway/lifecycle into services.ts (269 lines), achieving 140-line composition root — 87% reduction from 1087-line baseline

Performance

• Duration: ~8 min (across two sessions)
• Started: 2026-02-10T04:19:31Z
• Completed: 2026-02-10T04:27:00Z
• Tasks: 2
• Files modified: 2 (1 created, 1 modified)

Accomplishments

• Extracted 6 functions into src/daemon/services.ts: initSkills(), initMcp(), loadSystemPrompt(), initPairingManager(), createGateway(), startServices()
• Reduced daemon/index.ts from 385 lines (post-Plan 02) to 140 lines — well under the 200-line target
• daemon/index.ts is now a pure composition root: imports → init calls → wire → return DaemonContext
• All 1077 tests pass, zero type errors, zero regressions
• Cumulative reduction: 1087 → 140 lines (87% reduction, 947 lines extracted)

Task Commits

Each task was committed atomically:

1. Task 1: Extract services/skills/gateway/MCP into services.ts, clean up index.ts — 701fcfc (refactor)
2. Task 2: Final validation — No separate commit (validation-only task, all changes in Task 1)

Files Created/Modified

• src/daemon/services.ts — Skills registry/installer, MCP server manager, system prompt assembly, pairing manager, gateway server creation, channel/gateway startup, Tailscale serve, heartbeat monitor, signal handlers (269 lines)
• src/daemon/index.ts — Thin composition root with organized imports, section dividers, DaemonContext return (140 lines)

Decisions Made

• Grouped all remaining service initialization (skills, MCP, pairing, gateway, system prompt, lifecycle startup) into a single services.ts rather than multiple tiny modules — these all share config/lifecycle dependencies and are called sequentially
• Used getChannelAgents() callback pattern to handle late-binding of channel agents into gateway's token usage reporting — avoids circular dependency between channel registration and gateway creation
• Converted ModelRouter, McpManager, SkillRegistry, SkillInstaller, GatewayServer to type-only imports in index.ts since they're only referenced in the DaemonContext type definition (values come from factory functions in extracted modules)

Deviations from Plan

None — plan executed exactly as written. daemon/index.ts was 385 lines as expected, extraction targets matched plan analysis, final line count (140) comfortably under the 200-line target.

Issues Encountered

None.

User Setup Required

None — no external service configuration required.

Next Phase Readiness

• Phase 1 complete: daemon/index.ts is a 140-line composition root
• 8 daemon modules total: models.ts (251), memory.ts (99), tools.ts (89), routing.ts (239), agents.ts (48), channels.ts (102), services.ts (269), lifecycle.ts (34) — 1131 lines of extracted logic
• All modules use consistent factory pattern with typed deps/result interfaces
• Phase 2 (Config Overlays) can proceed — config loading changes are low-risk since daemon wiring is now modular
• Phase 3 (Live Ops Dashboard) can proceed — metrics hooks can be wired into individual modules rather than the monolithic god file

Module Summary (Final State)

Module	Lines	Responsibility
index.ts	140	Composition root — imports, wiring, DaemonContext
models.ts	251	Model client factory, GitHub mapping, auto-fallback, model router
services.ts	269	Skills, MCP, system prompt, pairing, gateway, service startup
routing.ts	239	Message router, agent cache, sandbox wiring, audio
channels.ts	102	All channel adapter registration (8 adapters)
memory.ts	99	Memory store, vector store, hybrid search, indexer
tools.ts	89	Tool registry, builtin tools, web search, process/browser managers
agents.ts	48	Agent config registry, agent router, sandbox manager
lifecycle.ts	34	Lifecycle state management
Total	1271	Full daemon initialization

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Phase: 01-daemon-decomposition Completed: 2026-02-10

Self-Check: PASSED

• All 2 files verified present (services.ts, index.ts)
• Task 1 commit verified (701fcfc)
• Line counts match: index.ts=140, services.ts=269
• Typecheck: clean
• Tests: 1077/1077 passed