deepseek-harness/docs/event-producer-consumer.md

Event Producer And Consumer Matrix

This matrix shows which packages dispatch each harness-owned event and which packages listen to it. It is intentionally a table rather than one large graph: events are many-to-many, and dense relation data is easier to review in rows. Dynamic dispatch overrides cover sites that deliberately bypass ctx.emit, such as subagent lifecycle containment.

Event	Mode	Declared in	Dispatchers	Listeners
agent/created	emit	packages/core/agent/src/types.ts:248	agent (emit)	stdio-agent
agent/disposed	emit	packages/core/agent/src/types.ts:255	agent (emit)	stdio-agent
agent/error	emit	packages/core/agent/src/types.ts:404	agent-loop (emit)	-
agent/pre-step	serial	packages/core/agent/src/types.ts:333	agent-loop (serial)	compact-basic, project-instructions
agent/prompt-submit	waterfall	packages/core/agent/src/types.ts:346	agent-loop (waterfall)	hooks-claude, hooks-codex
agent/queued	emit	packages/core/agent/src/types.ts:273	agent-loop (emit)	-
agent/request	waterfall	packages/core/agent/src/types.ts:369	agent-loop (waterfall)	-
agent/session-start	emit	packages/core/agent/src/types.ts:288	agent-loop (emit)	hooks-claude, hooks-codex
agent/status	emit	packages/core/agent/src/types.ts:264	agent-loop (emit)	acp, invariants, stdio-agent
agent/step-result	waterfall	packages/core/agent/src/types.ts:379	agent-loop (waterfall)	-
agent/turn-continuation	waterfall	packages/core/agent/src/types.ts:392	agent-loop (waterfall)	hooks-claude, hooks-codex
fs/edit-intent	waterfall	packages/fs/fs/src/index.ts:125	tool-fs (waterfall)	fs-policy
fs/observed	emit	packages/fs/fs/src/index.ts:140	tool-fs (emit)	fs-policy
fs/write-intent	waterfall	packages/fs/fs/src/index.ts:111	tool-fs (waterfall)	fs-policy
llm/stream	waterfall	packages/llm/llm/src/index.ts:39	llm (waterfall)	invariants, llm-replay
session/created	emit	packages/core/session/src/index.ts:39	session (emit)	invariants, session-persistence
session/event	emit	packages/core/session/src/index.ts:47	session (emit)	acp, invariants, session-persistence, stdio-agent
session/flush	parallel	packages/core/session/src/index.ts:57	agent-loop (parallel)	session-persistence
subagent/end	emit	packages/subagent/subagent/src/index.ts:98	subagent (events.dispatch)	hooks-claude
subagent/provider-added	emit	packages/subagent/subagent/src/index.ts:72	subagent (emit)	tool-subagent
subagent/provider-removed	emit	packages/subagent/subagent/src/index.ts:83	-	tool-subagent
subagent/start	emit	packages/subagent/subagent/src/index.ts:91	subagent (events.dispatch)	hooks-claude
system-prompt/assemble	waterfall	packages/core/system-prompt/src/index.ts:38	system-prompt (waterfall)	-
system-prompt/change	emit	packages/core/system-prompt/src/index.ts:44	system-prompt (emit)	-
tools/change	emit	packages/core/tools/src/index.ts:87	tools (emit)	-
tools/post-execute	waterfall	packages/core/tools/src/index.ts:82	tools (waterfall)	hooks-claude, hooks-codex, project-instructions
tools/pre-execute	waterfall	packages/core/tools/src/index.ts:66	tools (waterfall)	hooks-claude, hooks-codex

Maintenance mode: hybrid generated: Cordis event declarations and most producer/listener edges are AST-scanned; dynamic dispatch sites are classified in scripts/gen-doc-graphs.ts.