Merge branch 'codex/tool-json-schema-dsl' into codex/canonical-tool-output

# Conflicts:
#	.agents/notes/implemented/feature/2026-06-30-interception-seams.md
#	docs/config-catalog.md
#	docs/cookbook/adding-a-tool.i18n.yaml
#	docs/cookbook/adding-a-tool.md
#	docs/cookbook/adding-a-tool.zh.md
#	docs/cordis-catalog/events.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/tools.md
#	docs/event-producer-consumer.md
#	docs/persistence-catalog.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/stdout.expected.jsonl
#	packages/bash/tool-bash/src/index.ts
#	packages/core/agent-loop/src/tool-calls.ts
#	packages/core/agent-loop/tests/cancel.spec.ts
#	packages/core/agent-loop/tests/contract-regressions.spec.ts
#	packages/core/agent-loop/tests/tool-calls.spec.ts
#	packages/core/tools/README.md
#	packages/core/tools/src/index.ts
#	packages/core/tools/tests/code-mode.spec.ts
#	packages/core/tools/tests/tools.spec.ts
#	packages/fs/tool-fs-search/tests/integration.spec.ts
#	packages/fs/tool-fs-search/tests/tools.spec.ts
#	packages/fs/tool-fs/tests/integration.spec.ts
#	packages/mcp/mcp-client/src/tools.ts
#	packages/timeout/timeout-policy/tests/timeout-policy.spec.ts
#	packages/web/tool-web/tests/integration.spec.ts
#	packages/web/tool-web/tests/tool-web.spec.ts

packages/goal/tool-goal/tests/tool-goal.spec.ts

@@ -13,6 +13,8 @@ import ToolRegistry from '@deepseek-ai/dsh-tools'
 import type { ToolExecutionResult } from '@deepseek-ai/dsh-tools'
 import * as toolGoal from '@deepseek-ai/dsh-tool-goal'
 
+const testToolSignal = new AbortController().signal
+
 interface StubAgent {
   readonly agent: Agent
   readonly session: Session
@@ -84,6 +86,7 @@ async function execute(
   initiator: Agent | undefined = agent,
 ): Promise<ToolExecutionResult> {
   const run = () => ctx.tools.execute({
+    signal: testToolSignal,
     callId: CallId(`call-${Math.random()}`),
     name,
     arguments: args,
@@ -116,7 +119,7 @@ describe('goal tool registration and presentation', () => {
     expect(['create_goal', 'get_goal', 'update_goal'].map(name => ctx.tools.get(name)?.name))
       .toEqual(['create_goal', 'get_goal', 'update_goal'])
     for (const name of ['create_goal', 'get_goal', 'update_goal']) {
-      expect(ctx.tools.executionMode({ callId: CallId(name), name, arguments: {} }))
+      expect(ctx.tools.executionMode({ signal: testToolSignal, callId: CallId(name), name, arguments: {} }))
         .toEqual({ kind: 'exclusive' })
     }
     const section = (await ctx.systemPrompt.assemble()).sections.find(item => item.name === 'tool:goal')
@@ -200,6 +203,7 @@ describe('goal tool execution authority', () => {
 
     openTurn(root, { kind: 'user' })
     const driverless = await ctx.tools.execute({
+      signal: testToolSignal,
       callId: CallId('call-driverless'),
       name: 'get_goal',
       arguments: {},
@@ -329,7 +333,7 @@ describe('goal tool state transitions', () => {
       goal_id: goal['id'], revision: goal['revision'], action: 'resume',
     }, root.agent))
     expect(goal).toMatchObject({ phase: 'active', revision: 4 })
-    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', 1)).toBeUndefined()
+    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', 1, testToolSignal)).toBeUndefined()
   })
 
   it('terminal-stops an autonomous completion but leaves a human pause interactive', async () => {
@@ -340,7 +344,7 @@ describe('goal tool state transitions', () => {
       goal_id: created.id, revision: created.revision, action: 'pause',
     }, root.agent)
     expect(resultGoal(paused)).toMatchObject({ phase: 'paused' })
-    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', humanTurn)).toBeUndefined()
+    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', humanTurn, testToolSignal)).toBeUndefined()
     const resumed = resultGoal(await execute(ctx, 'update_goal', {
       goal_id: created.id, revision: 2, action: 'resume',
     }, root.agent))
@@ -353,8 +357,8 @@ describe('goal tool state transitions', () => {
       goal_id: created.id, revision: resumed['revision'], action: 'complete',
     }, root.agent)
     expect(resultGoal(complete)).toMatchObject({ phase: 'complete' })
-    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', roundTurn)).toEqual({ action: 'stop' })
-    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', roundTurn)).toBeUndefined()
+    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', roundTurn, testToolSignal)).toEqual({ action: 'stop' })
+    expect(await agentEvents(ctx, root.agent).serial('agent/turn-stop', roundTurn, testToolSignal)).toBeUndefined()
   })
 
   it('rearms a restored active goal only after a new direct human prompt', async () => {