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:316	agent (events.dispatch)	jsonrpc, stdio-agent
agent/disposed	emit	packages/core/agent/src/types.ts:331	agent (events.dispatch)	stdio-agent
agent/error	emit	packages/core/agent/src/types.ts:605	agent-loop (emit)	-
agent/pre-step	serial	packages/core/agent/src/types.ts:438	agent-loop (serial)	compact-basic, user-approval
agent/prompt-submit	waterfall	packages/core/agent/src/types.ts:456	agent-loop (waterfall)	acp, hooks-claude, hooks-codex, repeat-tool-guard
agent/queued	emit	packages/core/agent/src/types.ts:360	agent-loop (emit)	-
agent/request	waterfall	packages/core/agent/src/types.ts:485	agent-loop (waterfall)	-
agent/session-prefix	waterfall	packages/core/agent/src/types.ts:537	agent-loop (waterfall)	tool-skill
agent/session-start	emit	packages/core/agent/src/types.ts:381	agent-loop (emit)	hooks-claude, hooks-codex, invariants
agent/status	emit	packages/core/agent/src/types.ts:345	agent-loop (emit)	invariants, repeat-tool-guard, stdio-agent
agent/step-result	waterfall	packages/core/agent/src/types.ts:552	agent-loop (waterfall)	-
agent/turn-continuation	waterfall	packages/core/agent/src/types.ts:570	agent-loop (waterfall)	hooks-claude, hooks-codex
agent/turn-stop	serial	packages/core/agent/src/types.ts:588	agent-loop (serial)	subagent-inprocess
approval/request	waterfall	packages/ui/user-approval/src/index.ts:70	user-approval (waterfall)	acp
fs/edit-intent	waterfall	packages/fs/fs/src/index.ts:123	tool-fs (waterfall)	fs-policy
fs/observed	emit	packages/fs/fs/src/index.ts:138	tool-fs (emit)	fs-policy
fs/write-intent	waterfall	packages/fs/fs/src/index.ts:109	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:52	session (events.dispatch)	invariants, jsonrpc, session-persistence
session/disposed	emit	packages/core/session/src/index.ts:64	session (events.dispatch)	-
session/event	emit	packages/core/session/src/index.ts:83	session (events.dispatch)	acp, invariants, jsonrpc, session-persistence, stdio-agent
session/flush	parallel	packages/core/session/src/index.ts:101	session (events.dispatch)	session-persistence
skill/provider-added	emit	packages/skill/skill/src/index.ts:131	skill (emit)	-
skill/provider-removed	emit	packages/skill/skill/src/index.ts:137	skill (emit)	-
subagent/end	emit	packages/subagent/subagent/src/index.ts:90	subagent (events.dispatch)	hooks-claude, jsonrpc
subagent/provider-added	emit	packages/subagent/subagent/src/index.ts:66	subagent (emit)	tool-subagent
subagent/provider-removed	emit	packages/subagent/subagent/src/index.ts:72	subagent (events.dispatch)	tool-subagent
subagent/start	emit	packages/subagent/subagent/src/index.ts:82	subagent (events.dispatch)	hooks-claude
system-prompt/assemble	waterfall	packages/core/system-prompt/src/index.ts:49	system-prompt (waterfall)	-
system-prompt/change	emit	packages/core/system-prompt/src/index.ts:59	system-prompt (emit)	-
tools/change	emit	packages/core/tools/src/index.ts:173	tools (emit)	-
tools/execute	waterfall	packages/core/tools/src/index.ts:128	tools (waterfall)	timeout-policy
tools/post-execute	waterfall	packages/core/tools/src/index.ts:148	tools (waterfall)	hooks-claude, hooks-codex, repeat-tool-guard
tools/pre-execute	waterfall	packages/core/tools/src/index.ts:101	tools (waterfall)	hooks-claude, hooks-codex
tools/result	emit	packages/core/tools/src/index.ts:163	tools (events.dispatch)	subagent-inprocess
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:75	workflow (events.dispatch)	-
workflow/phase	emit	packages/workflow/workflow/src/index.ts:68	workflow (events.dispatch)	-
workflow/start	emit	packages/workflow/workflow/src/index.ts:60	workflow (events.dispatch)	-

Non-harness or undeclared event strings seen in package source

Event string	Dispatchers	Listeners
internal/dispatch	-	invariants

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.