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:279	agent (emit)	stdio-agent
agent/disposed	emit	packages/core/agent/src/types.ts:286	agent (emit)	stdio-agent
agent/error	emit	packages/core/agent/src/types.ts:490	agent-loop (emit)	-
agent/pre-step	serial	packages/core/agent/src/types.ts:371	agent-loop (serial)	compact-basic, user-approval
agent/prompt-submit	waterfall	packages/core/agent/src/types.ts:384	agent-loop (waterfall)	acp, hooks-claude, hooks-codex, repeat-tool-guard
agent/queued	emit	packages/core/agent/src/types.ts:304	agent-loop (emit)	-
agent/request	waterfall	packages/core/agent/src/types.ts:408	agent-loop (waterfall)	-
agent/session-prefix	waterfall	packages/core/agent/src/types.ts:455	agent-loop (waterfall)	tool-skill, workspace-context
agent/session-start	emit	packages/core/agent/src/types.ts:319	agent-loop (emit)	hooks-claude, hooks-codex
agent/status	emit	packages/core/agent/src/types.ts:295	agent-loop (emit)	acp, invariants, repeat-tool-guard, stdio-agent
agent/step-result	waterfall	packages/core/agent/src/types.ts:465	agent-loop (waterfall)	-
agent/turn-continuation	waterfall	packages/core/agent/src/types.ts:478	agent-loop (waterfall)	hooks-claude, hooks-codex
approval/request	waterfall	packages/ui/user-approval/src/index.ts:64	user-approval (waterfall)	acp
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
skill/provider-added	emit	packages/skill/skill/src/index.ts:130	skill (emit)	-
skill/provider-removed	emit	packages/skill/skill/src/index.ts:136	skill (emit)	-
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:135	tools (emit)	-
tools/execute	waterfall	packages/core/tools/src/index.ts:114	tools (waterfall)	timeout-policy
tools/post-execute	waterfall	packages/core/tools/src/index.ts:130	tools (waterfall)	hooks-claude, hooks-codex, repeat-tool-guard, workspace-context
tools/pre-execute	waterfall	packages/core/tools/src/index.ts:94	tools (waterfall)	hooks-claude, hooks-codex
workflow/agent-end	emit	packages/workflow/workflow/src/index.ts:96	workflow (events.dispatch)	-
workflow/agent-start	emit	packages/workflow/workflow/src/index.ts:85	workflow (events.dispatch)	-
workflow/end	emit	packages/workflow/workflow/src/index.ts:106	workflow (events.dispatch)	-
workflow/log	emit	packages/workflow/workflow/src/index.ts:77	workflow (events.dispatch)	-
workflow/phase	emit	packages/workflow/workflow/src/index.ts:70	workflow (events.dispatch)	-
workflow/start	emit	packages/workflow/workflow/src/index.ts:62	workflow (events.dispatch)	-

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.