Tianyi Cui
06e4932984
# Conflicts: # .agents/notes/implemented/feature/2026-07-07-plan-mode.md # docs/config-catalog.md # docs/cordis-catalog/services.md # packages/mode/README.md # packages/mode/mode/README.md # packages/mode/mode/src/index.ts # packages/mode/mode/tests/mode.spec.ts
895 lines
41 KiB
TypeScript
895 lines
41 KiB
TypeScript
import { describe, expect, it, vi } from 'vitest'
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import { Context } from 'cordis'
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import { CallId } from '@deepseek-ai/dsh-llm'
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import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
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import ToolRegistry, { RUN_CODE_NAME, defineTool } from '@deepseek-ai/dsh-tools'
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import { Session, SessionId } from '@deepseek-ai/dsh-session'
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import { agentEvents, type Agent, type RequestErrorDecision } from '@deepseek-ai/dsh-agent'
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import { createScope } from '@deepseek-ai/dsh-scope'
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import UserInteractionService, { type AskUserQuestionRequest } from '@deepseek-ai/dsh-user-interaction'
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import CommandService from '@deepseek-ai/dsh-commands'
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import { CodeRuntime, type CodeRunRequest, type CodeRunResult } from '@deepseek-ai/dsh-code-runtime'
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import ModesService, { DEFAULT_MODE, EXIT_PLAN_MODE, PLAN_MODE, foldMode, resolveConfig } from '../src/index.ts'
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import type { ModeConfig } from '../src/index.ts'
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const TEST_PLAN_SECTION = 'Test plan mode instructions.'
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const PLAN_CONFIG = { modes: { plan: { section: TEST_PLAN_SECTION } } } satisfies ModeConfig
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/**
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* Drives the REAL plugin: mounts `dsh-mode` beside real `SystemPrompt` and
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* `ToolRegistry` services, with fake Agents carrying real `Session`s and a
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* real scoped `agent.ctx` minted through `createScope`.
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* Turn boundaries are simulated by appending the real boundary events and
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* dispatching the interception seams the loop fires there. Recovery retries
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* exercise the separate `agent/request-error` wrapper.
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*/
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async function agentWithSession(ctx: Context, id = 'agent-1', { mode }: { mode?: string } = {}): Promise<Agent & { session: Session }> {
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const session = new Session(SessionId(id))
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const agent = { id: SessionId(id), session, options: {} } as unknown as Agent & { session: Session }
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let scoped!: Context
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await ctx.plugin(Object.assign((inner: Context) => { scoped = createScope(inner, agent).ctx }, {
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inject: ['tools'],
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}))
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;(agent as { ctx?: Context }).ctx = scoped
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// A seeded mode lands before the creation announcement, matching resume.
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if (mode !== undefined) session.append('mode/set', { mode })
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// The loop announces creation after publication.
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ctx.emit('agent/created', agent)
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return agent
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}
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/** Assemble exactly as the loop does: the agent is both subject and scope. */
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function assembleFor(ctx: Context, agent: Agent) {
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return ctx.systemPrompt.assemble({ agent, scope: agent })
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}
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async function setup(config: ModeConfig = PLAN_CONFIG): Promise<Context> {
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const ctx = new Context()
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await ctx.plugin(SystemPrompt)
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await ctx.plugin(ToolRegistry)
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await ctx.plugin(ModesService, config)
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return ctx
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}
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/**
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* Append a boundary event and dispatch the interception seam the loop fires
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* there — `agent/prompt-submit` inside the just-opened turn,
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* `agent/turn-continuation` after the step closed. Recovery retries use the
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* separately covered `agent/request-error` wrapper; post-commit
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* `session/event` observers remain observe-only.
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*/
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async function boundary(ctx: Context, agent: Agent & { session: Session }, type: 'turn/start' | 'step/end'): Promise<void> {
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const events = agentEvents(ctx, agent)
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if (type === 'turn/start') {
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agent.session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } })
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await events.waterfall('agent/prompt-submit', [{ type: 'text', text: 'boundary probe' }], { kind: 'user' }, () => Promise.resolve({ kind: 'allow' }))
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return
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}
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agent.session.append('step/end', { turn: 1, step: 1 })
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await events.waterfall('agent/turn-continuation', 1, { action: 'stop' }, () => Promise.resolve({ action: 'stop' }))
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}
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/** Dispatch the closed-step recovery seam with one terminal decision. */
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function recoveryBoundary(
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ctx: Context,
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agent: Agent & { session: Session },
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decision: RequestErrorDecision,
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): Promise<RequestErrorDecision> {
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return agentEvents(ctx, agent).waterfall(
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'agent/request-error',
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1,
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1,
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new Error('request failed'),
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{ message: 'request failed', code: 'SERVER' },
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[],
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new AbortController().signal,
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() => Promise.resolve(decision),
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)
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}
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/** Append a minimal `request/header` snapshot so the log has a "what the model was told" anchor. */
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function header(session: Session): void {
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session.append('request/header', { header: { config: { provider: 'test', model: 'test-model' } }, reason: 'initial' })
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}
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function noticeTexts(session: Session): string[] {
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return session.events
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.filter(event => event.type === 'context/message')
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.map(event => (event.data as { content: { type: string; text?: string }[] }).content.map(block => block.text ?? '').join(''))
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}
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function registerNamedTools(ctx: Context, names: string[]): void {
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for (const name of names) {
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ctx.tools.register(defineTool({
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name,
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description: `test tool ${name}`,
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parameters: {},
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execute: () => Promise.resolve([{ type: 'text', text: `ran ${name}` }]),
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}))
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}
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}
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let callCounter = 0
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function execute(ctx: Context, name: string, agent?: Agent) {
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return ctx.tools.execute({
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callId: CallId(`call-${++callCounter}`),
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name,
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arguments: {},
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...agent ? { agent } : {},
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})
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}
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describe('resolveConfig', () => {
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it('requires the deployment to configure the plan instructions', () => {
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expect(() => resolveConfig({ modes: {} }))
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.toThrow('mode "plan" is required; put its model instructions in modes.plan.section')
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expect(() => resolveConfig({} as ModeConfig))
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.toThrow('mode "plan" is required; put its model instructions in modes.plan.section')
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})
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it('loads the configured plan instructions and further modes verbatim', () => {
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const resolved = resolveConfig({ modes: {
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plan: { section: TEST_PLAN_SECTION },
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review: { section: 'review' },
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} })
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expect(resolved.definitions.get(PLAN_MODE)).toEqual({ section: TEST_PLAN_SECTION })
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expect(resolved.definitions.get('review')).toEqual({ section: 'review' })
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})
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it('rejects the reserved default key loudly', () => {
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expect(() => resolveConfig({ modes: { ...PLAN_CONFIG.modes, default: { section: 'policy' } } }))
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.toThrow('"default" is reserved')
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})
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it('rejects a malformed definition loudly', () => {
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expect(() => resolveConfig({ modes: { ...PLAN_CONFIG.modes, bad: { section: 5 } as unknown as { section: string } } }))
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.toThrow('needs a string `section`')
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expect(() => resolveConfig({ modes: { plan: { section: ' ' } } }))
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.toThrow('needs a non-empty `section`')
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// Unknown keys fail loud — a tool allow/deny list and enforcement knobs
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// are deliberately not part of the vocabulary, and a config still
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// carrying one must not be silently accepted as if it shaped anything.
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expect(() => resolveConfig({ modes: { ...PLAN_CONFIG.modes, bad: { section: 'bad', tools: ['read'] } as unknown as { section: string } } }))
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.toThrow('unknown key(s) tools — a definition is { section }')
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expect(() => resolveConfig({ modes: { ...PLAN_CONFIG.modes, bad: { section: 'bad', access: 'read-only' } as unknown as { section: string } } }))
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.toThrow('unknown key(s) access — a definition is { section }')
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})
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})
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describe('foldMode', () => {
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it('folds an empty log to the default mode and takes the last mode/set otherwise', () => {
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const session = new Session(SessionId('fold'))
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expect(foldMode(session.events)).toBe(DEFAULT_MODE)
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session.append('mode/set', { mode: 'plan' })
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session.append('mode/set', { mode: 'default' })
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session.append('mode/set', { mode: 'plan' })
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expect(foldMode(session.events)).toBe('plan')
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})
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it('folds a prefix when `end` is given', () => {
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const session = new Session(SessionId('fold-prefix'))
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session.append('mode/set', { mode: 'plan' })
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session.append('mode/set', { mode: 'default' })
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expect(foldMode(session.events, 1)).toBe('plan')
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expect(foldMode(session.events, 0)).toBe(DEFAULT_MODE)
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})
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})
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describe('ctx.modes: list/get/set', () => {
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it('lists default first, then the configured definitions', async () => {
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const ctx = await setup({ modes: { ...PLAN_CONFIG.modes, review: { section: 's' } } })
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expect(ctx.modes.list()).toEqual([DEFAULT_MODE, PLAN_MODE, 'review'])
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})
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it('reads the folded mode, mapping a dropped definition to default', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE })
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agent.session.append('mode/set', { mode: PLAN_MODE })
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expect(ctx.modes.get(agent)).toEqual({ current: PLAN_MODE })
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agent.session.append('mode/set', { mode: 'retired' })
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE })
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})
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it('rejects an unknown mode name loudly, naming the vocabulary', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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expect(() => { ctx.modes.set(agent, 'nope') }).toThrow('unknown mode "nope" — available modes: default, plan')
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})
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it('accepts default as a target (exit-to-default is a valid write)', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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agent.session.append('mode/set', { mode: PLAN_MODE })
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ctx.modes.set(agent, DEFAULT_MODE)
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expect(ctx.modes.get(agent)).toEqual({ current: PLAN_MODE, pending: DEFAULT_MODE })
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})
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it('drops a no-op set (target equals pending, else the current fold)', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, DEFAULT_MODE)
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE })
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ctx.modes.set(agent, PLAN_MODE)
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ctx.modes.set(agent, PLAN_MODE)
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
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})
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})
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describe('the boundary flush', () => {
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it('flushes the pending intent as a mode/set at turn/start', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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await boundary(ctx, agent, 'turn/start')
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expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
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expect(ctx.modes.get(agent)).toEqual({ current: PLAN_MODE })
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})
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it('flushes at step/end too (a mid-turn flip lands on the following step)', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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await boundary(ctx, agent, 'step/end')
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expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
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})
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it('keeps the pending intent parked when recovery does not retry', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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expect(await recoveryBoundary(ctx, agent, { action: 'fail' })).toEqual({ action: 'fail' })
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
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})
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it('contains an append failure at the retry boundary without changing its decision', async () => {
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const ctx = await setup()
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const warn = vi.fn()
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ctx.logger.warn = warn as never
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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const original = agent.session.append.bind(agent.session)
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agent.session.append = (((type: string, ...rest: unknown[]) => {
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if (type === 'mode/set') throw new Error('backend gone')
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return (original as (...args: unknown[]) => unknown)(type, ...rest)
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}) as unknown) as typeof agent.session.append
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expect(await recoveryBoundary(ctx, agent, { action: 'retry' })).toEqual({ action: 'retry' })
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expect(warn).toHaveBeenCalledOnce()
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
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})
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it('nets out a flip sequence that returns to the folded mode (no append, no notice)', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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ctx.modes.set(agent, DEFAULT_MODE)
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await boundary(ctx, agent, 'turn/start')
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expect(agent.session.events.some(event => event.type === 'mode/set')).toBe(false)
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expect(noticeTexts(agent.session)).toEqual([])
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})
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it('narrates nothing before the first request header (the section is the state statement)', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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await boundary(ctx, agent, 'turn/start')
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expect(noticeTexts(agent.session)).toEqual([])
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})
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it('narrates once when the flushed mode differs from what the last header told the model', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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header(agent.session)
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ctx.modes.set(agent, PLAN_MODE)
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await boundary(ctx, agent, 'turn/start')
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expect(noticeTexts(agent.session)).toEqual(['The user switched this session to plan mode.'])
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await boundary(ctx, agent, 'step/end')
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expect(noticeTexts(agent.session)).toEqual(['The user switched this session to plan mode.'])
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})
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it('narrates a switch back to the default mode with the default wording', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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agent.session.append('mode/set', { mode: PLAN_MODE })
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header(agent.session)
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ctx.modes.set(agent, DEFAULT_MODE)
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await boundary(ctx, agent, 'step/end')
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expect(noticeTexts(agent.session)).toEqual(['The user switched this session back to the default mode.'])
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})
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it('stays silent when the header already reflects the flushed mode', async () => {
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const ctx = await setup()
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const agent = await agentWithSession(ctx)
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agent.session.append('mode/set', { mode: PLAN_MODE })
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header(agent.session)
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agent.session.append('mode/set', { mode: DEFAULT_MODE })
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ctx.modes.set(agent, PLAN_MODE)
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await boundary(ctx, agent, 'step/end')
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expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
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expect(noticeTexts(agent.session)).toEqual([])
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})
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it('contains an append failure instead of blocking the prompt or the turn', async () => {
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const ctx = await setup()
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const warn = vi.fn()
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ctx.logger.warn = warn as never
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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const original = agent.session.append.bind(agent.session)
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// Only the flush's own mode/set append fails; the boundary event itself
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// lands (the loop appended it before the seam fires).
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agent.session.append = (((type: string, ...rest: unknown[]) => {
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if (type === 'mode/set') throw new Error('backend gone')
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return (original as (...args: unknown[]) => unknown)(type, ...rest)
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}) as unknown) as typeof agent.session.append
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await boundary(ctx, agent, 'step/end')
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expect(warn).toHaveBeenCalledOnce()
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// The failed flush re-parks the intent (cleared only after a landed
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// append), so the next healthy boundary converges the log with the
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// picker's optimistic state instead of dropping the switch forever.
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
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agent.session.append = original
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await boundary(ctx, agent, 'step/end')
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expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
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expect(ctx.modes.get(agent).pending).toBeUndefined()
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})
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it('contains an append failure on the prompt-submit seam the same way', async () => {
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const ctx = await setup()
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const warn = vi.fn()
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ctx.logger.warn = warn as never
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const agent = await agentWithSession(ctx)
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ctx.modes.set(agent, PLAN_MODE)
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const original = agent.session.append.bind(agent.session)
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agent.session.append = (((type: string, ...rest: unknown[]) => {
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if (type === 'mode/set') throw new Error('backend gone')
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return (original as (...args: unknown[]) => unknown)(type, ...rest)
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}) as unknown) as typeof agent.session.append
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await boundary(ctx, agent, 'turn/start')
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expect(warn).toHaveBeenCalledOnce()
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expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
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})
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})
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describe('the soft layer', () => {
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it('keeps the tool schemas identical across default and plan mode', async () => {
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const ctx = await setup()
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registerNamedTools(ctx, ['read', 'write'])
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const agent = await agentWithSession(ctx)
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const defaultAssembly = await assembleFor(ctx, agent)
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expect(defaultAssembly.tools.map(tool => tool.name)).toEqual([EXIT_PLAN_MODE, 'read', 'write'])
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expect(defaultAssembly.sections.find(section => section.name === 'mode:policy')?.text).toBe('')
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agent.session.append('mode/set', { mode: PLAN_MODE })
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const planAssembly = await assembleFor(ctx, agent)
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expect(planAssembly.tools).toEqual(defaultAssembly.tools)
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expect(planAssembly.sections.find(section => section.name === 'mode:policy')?.text).toBe(TEST_PLAN_SECTION)
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})
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it('leaves an agent-less assembly untouched', async () => {
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const ctx = await setup()
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registerNamedTools(ctx, ['read'])
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const assembly = await ctx.systemPrompt.assemble()
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expect(assembly.tools.map(tool => tool.name)).toEqual([EXIT_PLAN_MODE, 'read'])
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expect(assembly.sections.find(section => section.name === 'mode:policy')?.text).toBe('')
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})
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it('keeps the full toolset in plan mode and renders the configured mode section', async () => {
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const ctx = await setup()
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registerNamedTools(ctx, ['read', 'write', 'todo_write'])
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const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
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const assembly = await assembleFor(ctx, agent)
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expect(assembly.tools.map(tool => tool.name).sort()).toEqual([EXIT_PLAN_MODE, 'read', 'todo_write', 'write'])
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expect(assembly.sections.find(section => section.name === 'mode:policy')?.text).toBe(TEST_PLAN_SECTION)
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})
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it('keeps exit_plan_mode visible in custom modes while rendering their guidance', async () => {
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const ctx = await setup({ modes: { ...PLAN_CONFIG.modes, review: { section: 'reviewing' } } })
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registerNamedTools(ctx, ['read', 'write'])
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const agent = await agentWithSession(ctx, 'agent-1', { mode: 'review' })
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const assembly = await assembleFor(ctx, agent)
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expect(assembly.tools.map(tool => tool.name)).toEqual([EXIT_PLAN_MODE, 'read', 'write'])
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expect(assembly.sections.find(section => section.name === 'mode:policy')?.text).toBe('reviewing')
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})
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it('leaves foreign assemble additions alone in any mode (no assemble-layer filtering at all)', async () => {
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// Modes do not filter the deployment's registry or later assembly additions.
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const ctx = new Context()
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await ctx.plugin(SystemPrompt)
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await ctx.plugin(ToolRegistry)
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ctx.on('system-prompt/assemble', async (_assembly, _context, next) => {
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const final = await next()
|
|
final.tools = [...final.tools, { name: 'added-later', description: 'added after next()', parameters: {} }]
|
|
return final
|
|
})
|
|
await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
registerNamedTools(ctx, ['read'])
|
|
const planning = await agentWithSession(ctx, 'planning', { mode: PLAN_MODE })
|
|
expect((await assembleFor(ctx, planning)).tools.map(tool => tool.name))
|
|
.toEqual(['exit_plan_mode', 'read', 'added-later'])
|
|
const defaulted = await agentWithSession(ctx, 'defaulted')
|
|
expect((await assembleFor(ctx, defaulted)).tools.map(tool => tool.name))
|
|
.toEqual(['exit_plan_mode', 'read', 'added-later'])
|
|
})
|
|
|
|
it('keeps run_code the only wire tool in plan mode under the registry Code Mode; the SDK gains the exit binding', async () => {
|
|
// Minimal scriptable runtime: the SDK section resolves ctx.codeRuntime at
|
|
// assembly time (the code-mode.spec fake's shape).
|
|
class FakeRuntime extends CodeRuntime {
|
|
readonly language = 'typescript'
|
|
readonly isolation = 'fake'
|
|
run(_request: CodeRunRequest): Promise<CodeRunResult> { return Promise.resolve({ logs: [] }) }
|
|
}
|
|
const ctx = new Context()
|
|
await ctx.plugin(SystemPrompt)
|
|
await ctx.plugin(ToolRegistry, { mode: 'code' })
|
|
await ctx.plugin(FakeRuntime)
|
|
await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
registerNamedTools(ctx, ['read', 'write'])
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
|
|
const assembly = await assembleFor(ctx, agent)
|
|
expect(assembly.tools.map(tool => tool.name)).toEqual(['run_code'])
|
|
// The SDK documents the full binding set plus the exit — a mode never
|
|
// prunes capabilities; it restrains by the section's guidance alone.
|
|
const sdk = assembly.sections.find(section => section.name === 'tools:sdk')?.text ?? ''
|
|
expect(sdk).toContain('read(args:')
|
|
expect(sdk).toContain('write(args:')
|
|
expect(sdk).toContain('exit_plan_mode(args:')
|
|
})
|
|
|
|
it('keeps native wire schemas and the SDK in step under mode both', async () => {
|
|
class FakeRuntime extends CodeRuntime {
|
|
readonly language = 'typescript'
|
|
readonly isolation = 'fake'
|
|
run(_request: CodeRunRequest): Promise<CodeRunResult> { return Promise.resolve({ logs: [] }) }
|
|
}
|
|
const ctx = new Context()
|
|
await ctx.plugin(SystemPrompt)
|
|
await ctx.plugin(ToolRegistry, { mode: 'both' })
|
|
await ctx.plugin(FakeRuntime)
|
|
await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
registerNamedTools(ctx, ['read', 'write'])
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
|
|
const assembly = await assembleFor(ctx, agent)
|
|
// The stable registry contribution reaches both surfaces: the exit tool
|
|
// is present on the wire AND in the SDK alongside the untouched toolset.
|
|
expect(assembly.tools.map(tool => tool.name).sort()).toEqual(['exit_plan_mode', 'read', 'run_code', 'write'])
|
|
const sdk = assembly.sections.find(section => section.name === 'tools:sdk')?.text ?? ''
|
|
expect(sdk).toContain('read(args:')
|
|
expect(sdk).toContain('write(args:')
|
|
expect(sdk).toContain('exit_plan_mode(args:')
|
|
})
|
|
|
|
it('keeps the Code Mode SDK byte-identical across mode switches', async () => {
|
|
class FakeRuntime extends CodeRuntime {
|
|
readonly language = 'typescript'
|
|
readonly isolation = 'fake'
|
|
run(_request: CodeRunRequest): Promise<CodeRunResult> { return Promise.resolve({ logs: [] }) }
|
|
}
|
|
const withModes = new Context()
|
|
await withModes.plugin(SystemPrompt)
|
|
await withModes.plugin(ToolRegistry, { mode: 'code' })
|
|
await withModes.plugin(FakeRuntime)
|
|
await withModes.plugin(ModesService, PLAN_CONFIG)
|
|
registerNamedTools(withModes, ['read', 'write'])
|
|
const agent = await agentWithSession(withModes)
|
|
const defaultSdk = (await assembleFor(withModes, agent)).sections.find(section => section.name === 'tools:sdk')?.text ?? ''
|
|
expect(defaultSdk).toContain('read(args:')
|
|
expect(defaultSdk).toContain('write(args:')
|
|
expect(defaultSdk).toContain('exit_plan_mode(args:')
|
|
agent.session.append('mode/set', { mode: PLAN_MODE })
|
|
const planSdk = (await assembleFor(withModes, agent)).sections.find(section => section.name === 'tools:sdk')?.text ?? ''
|
|
expect(planSdk).toBe(defaultSdk)
|
|
|
|
// Loading the mode plugin deliberately adds one stable binding compared
|
|
// with a deployment that does not compose plan mode at all.
|
|
const bare = new Context()
|
|
await bare.plugin(SystemPrompt)
|
|
await bare.plugin(ToolRegistry, { mode: 'code' })
|
|
await bare.plugin(FakeRuntime)
|
|
registerNamedTools(bare, ['read', 'write'])
|
|
const bareSdk = (await bare.systemPrompt.assemble({ agent })).sections.find(section => section.name === 'tools:sdk')?.text ?? ''
|
|
expect(bareSdk).not.toContain('exit_plan_mode(args:')
|
|
expect(defaultSdk).not.toBe(bareSdk)
|
|
})
|
|
|
|
it('treats a dropped folded definition as the default mode', async () => {
|
|
const ctx = await setup()
|
|
registerNamedTools(ctx, ['read', 'write'])
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: 'retired' })
|
|
const assembly = await assembleFor(ctx, agent)
|
|
expect(assembly.tools.map(tool => tool.name)).toEqual([EXIT_PLAN_MODE, 'read', 'write'])
|
|
})
|
|
})
|
|
|
|
describe('no execution gating beyond the exit tool', () => {
|
|
it('passes agent-less and default-mode executions through', async () => {
|
|
const ctx = await setup()
|
|
registerNamedTools(ctx, ['write'])
|
|
const agentless = await execute(ctx, 'write')
|
|
expect(agentless.isError).toBe(false)
|
|
const agent = await agentWithSession(ctx)
|
|
const defaulted = await execute(ctx, 'write', agent)
|
|
expect(defaulted.isError).toBe(false)
|
|
})
|
|
|
|
it('runs every call in plan mode untouched — modes restrain by guidance, enforcement knobs are separate axes', async () => {
|
|
const ctx = await setup()
|
|
registerNamedTools(ctx, ['read', 'write', 'bash'])
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
|
|
for (const name of ['read', 'write', 'bash']) {
|
|
const result = await execute(ctx, name, agent)
|
|
expect(result.isError).toBe(false)
|
|
}
|
|
})
|
|
|
|
it('treats a dropped folded definition as the default mode', async () => {
|
|
const ctx = await setup()
|
|
registerNamedTools(ctx, ['write'])
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: 'retired' })
|
|
const result = await execute(ctx, 'write', agent)
|
|
expect(result.isError).toBe(false)
|
|
})
|
|
|
|
})
|
|
|
|
describe('the /mode command', () => {
|
|
it('registers only when a commands service is composed, and shows or switches the mode', async () => {
|
|
const bare = await setup()
|
|
expect(bare.get('commands')).toBeUndefined()
|
|
|
|
const ctx = await setup()
|
|
await ctx.plugin(CommandService)
|
|
// The `ctx.inject` child mounts asynchronously once `commands` resolves.
|
|
await new Promise(resolve => setImmediate(resolve))
|
|
const agent = await agentWithSession(ctx)
|
|
expect(ctx.commands.list(agent).map(command => command.name)).toEqual(['mode'])
|
|
|
|
const signal = new AbortController().signal
|
|
const show = await ctx.commands.execute(agent, '/mode', signal)
|
|
expect(show).toEqual({ kind: 'success', text: 'mode: default — available: default, plan' })
|
|
|
|
const flip = await ctx.commands.execute(agent, '/mode plan', signal)
|
|
expect(flip).toEqual({ kind: 'success', text: 'mode → plan (applies from the next turn)' })
|
|
expect(ctx.modes.get(agent)).toEqual({ current: DEFAULT_MODE, pending: PLAN_MODE })
|
|
const pendingShow = await ctx.commands.execute(agent, '/mode', signal)
|
|
expect(pendingShow).toEqual({ kind: 'success', text: 'mode: default (pending: plan) — available: default, plan' })
|
|
|
|
const unknown = await ctx.commands.execute(agent, '/mode nope', signal)
|
|
expect(unknown).toEqual({ kind: 'error', text: 'unknown mode "nope" — available modes: default, plan' })
|
|
})
|
|
})
|
|
|
|
describe('exit_plan_mode', () => {
|
|
async function setupWithReview(answer?: { selected: string[]; custom?: string }) {
|
|
const ctx = await setup()
|
|
await ctx.plugin(UserInteractionService)
|
|
const asked: AskUserQuestionRequest[] = []
|
|
if (answer !== undefined) {
|
|
ctx.userInteraction.registerProvider({
|
|
ask: (request) => {
|
|
asked.push(request)
|
|
return Promise.resolve({ answers: [{ id: 'plan-review', ...answer }] })
|
|
},
|
|
})
|
|
}
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
|
|
return { ctx, agent, asked }
|
|
}
|
|
|
|
function callExit(ctx: Context, agent: Agent | undefined, plan = '# The plan\n\ndo things') {
|
|
return ctx.tools.execute({
|
|
callId: CallId(`call-exit-${++callCounter}`),
|
|
name: EXIT_PLAN_MODE,
|
|
arguments: { plan },
|
|
...agent ? { agent } : {},
|
|
})
|
|
}
|
|
|
|
it('registers the tool with one required plan argument', async () => {
|
|
const ctx = await setup()
|
|
const schema = ctx.tools.schemas().find(entry => entry.name === EXIT_PLAN_MODE)
|
|
const parameters = schema?.parameters as { required?: string[]; properties?: Record<string, unknown> }
|
|
expect(schema?.description).toMatch(/^Use only in plan mode\./)
|
|
expect(Object.keys(parameters.properties ?? {})).toEqual(['plan'])
|
|
expect(parameters.required).toEqual(['plan'])
|
|
})
|
|
|
|
it('rejects an agent-less call', async () => {
|
|
const ctx = await setup()
|
|
const result = await callExit(ctx, undefined)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: exit_plan_mode requires a calling agent (no session to switch)' }])
|
|
})
|
|
|
|
it('rejects a call outside plan mode while remaining advertised', async () => {
|
|
const ctx = await setup()
|
|
const agent = await agentWithSession(ctx)
|
|
expect(ctx.tools.schemas().map(tool => tool.name)).toContain(EXIT_PLAN_MODE)
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: exit_plan_mode is only available in plan mode' }])
|
|
})
|
|
|
|
it('rejects an empty or heading-less plan before asking the reviewer', async () => {
|
|
const { ctx, agent, asked } = await setupWithReview({ selected: ['Approve'] })
|
|
for (const plan of ['', 'do things']) {
|
|
const result = await callExit(ctx, agent, plan)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: exit_plan_mode requires a non-empty markdown plan starting with a # heading' }])
|
|
}
|
|
expect(asked).toHaveLength(0)
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('degrades to the manual exit when no user-interaction seam is composed', async () => {
|
|
const ctx = await setup()
|
|
const agent = await agentWithSession(ctx, 'agent-1', { mode: PLAN_MODE })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-interaction channel is available to review the plan; ask the user to switch the session mode instead' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('degrades the same way when the seam has no provider (NO_PROVIDER)', async () => {
|
|
const { ctx, agent } = await setupWithReview()
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: no user-interaction provider is registered' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('approve: records the boundary-applied switch and confirms (the fold flips at the flush)', async () => {
|
|
const { ctx, agent, asked } = await setupWithReview({ selected: ['Approve'] })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(false)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Plan approved — plan mode exited; carry out the plan starting with your next step.' }])
|
|
// Boundary-applied, not a direct append: the fold stays plan until the
|
|
// step's end, so the plan policy covers any remaining call of the SAME batch.
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
expect(ctx.modes.get(agent)).toEqual({ current: PLAN_MODE, pending: DEFAULT_MODE })
|
|
await boundary(ctx, agent, 'step/end')
|
|
expect(foldMode(agent.session.events)).toBe(DEFAULT_MODE)
|
|
expect(asked).toHaveLength(1)
|
|
expect(asked[0]?.agent).toBe(agent)
|
|
expect(asked[0]?.questions[0]?.detail).toBe('# The plan\n\ndo things')
|
|
expect(asked[0]?.questions[0]?.options?.map(option => option.label)).toEqual(['Approve', 'Keep planning'])
|
|
})
|
|
|
|
it('carries the exact plan through a Code Mode review and logs the nested dispatch', async () => {
|
|
const plan = '# Code Mode plan\n\nUse the existing seam.'
|
|
class ExitRuntime extends CodeRuntime {
|
|
readonly language = 'typescript'
|
|
readonly isolation = 'fake'
|
|
async run(request: CodeRunRequest): Promise<CodeRunResult> {
|
|
const exit = request.bindings[0]?.functions[EXIT_PLAN_MODE]
|
|
if (exit === undefined) throw new Error('missing exit_plan_mode binding')
|
|
return { logs: [], value: await exit({ plan }) }
|
|
}
|
|
}
|
|
const ctx = new Context()
|
|
await ctx.plugin(SystemPrompt)
|
|
await ctx.plugin(ToolRegistry, { mode: 'code' })
|
|
await ctx.plugin(ExitRuntime)
|
|
await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
await ctx.plugin(UserInteractionService)
|
|
const asked: AskUserQuestionRequest[] = []
|
|
ctx.userInteraction.registerProvider({
|
|
ask: (request) => {
|
|
asked.push(request)
|
|
return Promise.resolve({ answers: [{ id: 'plan-review', selected: ['Approve'] }] })
|
|
},
|
|
})
|
|
const agent = await agentWithSession(ctx, 'code-mode-exit', { mode: PLAN_MODE })
|
|
|
|
const result = await ctx.tools.execute({
|
|
callId: CallId(`call-exit-${++callCounter}`),
|
|
name: RUN_CODE_NAME,
|
|
arguments: { code: `return await tools.${EXIT_PLAN_MODE}({ plan: ${JSON.stringify(plan)} })` },
|
|
agent,
|
|
})
|
|
|
|
expect(result.isError).toBe(false)
|
|
expect(asked).toHaveLength(1)
|
|
expect(asked[0]?.questions[0]).toMatchObject({
|
|
header: 'Plan review',
|
|
question: 'Approve this plan and leave plan mode?',
|
|
detail: plan,
|
|
})
|
|
expect(agent.session.events.find(event => event.type === 'tool/code-dispatch')?.data).toMatchObject({
|
|
name: EXIT_PLAN_MODE,
|
|
arguments: { plan },
|
|
isError: false,
|
|
})
|
|
expect(ctx.modes.get(agent)).toEqual({ current: PLAN_MODE, pending: DEFAULT_MODE })
|
|
})
|
|
|
|
it('an approved exit keeps plan guidance until the boundary and never removes the tool', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Approve'] })
|
|
const approved = await callExit(ctx, agent)
|
|
expect(approved.isError).toBe(false)
|
|
// Calls of the SAME assistant response (no boundary between) were
|
|
// requested under the plan-shaped header — the fold stays plan for that
|
|
// whole batch; the boundary flush is what flips the next step.
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
const assembly = await ctx.systemPrompt.assemble({ agent })
|
|
expect(assembly.tools.some(tool => tool.name === EXIT_PLAN_MODE)).toBe(true)
|
|
expect(assembly.sections.find(section => section.name === 'mode:policy')?.text).toBe(TEST_PLAN_SECTION)
|
|
await boundary(ctx, agent, 'step/end')
|
|
expect(foldMode(agent.session.events)).toBe(DEFAULT_MODE)
|
|
const afterExit = await ctx.systemPrompt.assemble({ agent })
|
|
expect(afterExit.tools).toEqual(assembly.tools)
|
|
expect(afterExit.sections.find(section => section.name === 'mode:policy')?.text).toBe('')
|
|
})
|
|
|
|
it('the exit flush narrates nothing — the tool result is the narration', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Approve'] })
|
|
header(agent.session)
|
|
await callExit(ctx, agent)
|
|
await boundary(ctx, agent, 'step/end')
|
|
expect(foldMode(agent.session.events)).toBe(DEFAULT_MODE)
|
|
expect(noticeTexts(agent.session)).toEqual([])
|
|
})
|
|
|
|
it('keep planning returns the corrective error carrying the feedback verbatim', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Keep planning'], custom: 'consider the resume path' })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: consider the resume path' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('keep planning without feedback returns the generic corrective error', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Keep planning'] })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
|
|
})
|
|
|
|
it('a custom-text-only answer is feedback, never consent', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: [], custom: 'add tests first' })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: add tests first' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('requires exactly the single Approve selection', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Approve', 'Keep planning'] })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('treats custom text alongside Approve as feedback, not consent', async () => {
|
|
const { ctx, agent } = await setupWithReview({ selected: ['Approve'], custom: 'change the tests' })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; their feedback: change the tests' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('treats duplicate review answer items as non-consent', async () => {
|
|
const { ctx, agent } = await setupWithReview()
|
|
ctx.userInteraction.registerProvider({
|
|
ask: () => Promise.resolve({ answers: [
|
|
{ id: 'plan-review', selected: ['Approve'] },
|
|
{ id: 'plan-review', selected: ['Keep planning'] },
|
|
] }),
|
|
})
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('a missing answer item reads as keep-planning', async () => {
|
|
const { ctx, agent } = await setupWithReview()
|
|
ctx.userInteraction.registerProvider({ ask: () => Promise.resolve({ answers: [] }) })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: The user chose to keep planning; revise the plan and present it again.' }])
|
|
})
|
|
|
|
it('forwards the execution abort signal to the review question', async () => {
|
|
const { ctx, agent, asked } = await setupWithReview({ selected: ['Approve'] })
|
|
const controller = new AbortController()
|
|
const result = await ctx.tools.execute({
|
|
callId: CallId(`call-exit-${++callCounter}`),
|
|
name: EXIT_PLAN_MODE,
|
|
arguments: { plan: '# P' },
|
|
agent,
|
|
signal: controller.signal,
|
|
})
|
|
expect(result.isError).toBe(false)
|
|
expect(asked[0]?.signal).toBe(controller.signal)
|
|
})
|
|
|
|
it('a throwing provider surfaces as the corrective isError and the mode stays plan', async () => {
|
|
const { ctx, agent } = await setupWithReview()
|
|
ctx.userInteraction.registerProvider({ ask: () => { throw new Error('review aborted') } })
|
|
const result = await callExit(ctx, agent)
|
|
expect(result.isError).toBe(true)
|
|
expect(result.content).toEqual([{ type: 'text', text: 'Error: review aborted' }])
|
|
expect(foldMode(agent.session.events)).toBe(PLAN_MODE)
|
|
})
|
|
|
|
it('presents the call as a generic card titled by the plan first heading', async () => {
|
|
const ctx = await setup()
|
|
const def = ctx.tools.get(EXIT_PLAN_MODE)!
|
|
expect(def.presentCall?.({ plan: '## Fix the flake\n\nsteps' })).toEqual({
|
|
card: 'generic',
|
|
title: 'Fix the flake',
|
|
kind: 'other',
|
|
content: [{ type: 'text', text: '## Fix the flake\n\nsteps' }],
|
|
})
|
|
expect(def.presentCall?.({ plan: 'no heading here' })).toEqual({
|
|
card: 'generic',
|
|
title: 'Plan',
|
|
kind: 'other',
|
|
content: [{ type: 'text', text: 'no heading here' }],
|
|
})
|
|
})
|
|
|
|
it('presents the result as a generic review card', async () => {
|
|
const ctx = await setup()
|
|
const def = ctx.tools.get(EXIT_PLAN_MODE)!
|
|
const content = [{ type: 'text' as const, text: 'ok' }]
|
|
expect(def.presentResult?.({ plan: '# P' }, { content, isError: false })).toEqual({
|
|
card: 'generic',
|
|
title: 'Plan review',
|
|
content,
|
|
})
|
|
})
|
|
})
|
|
|
|
describe('HMR disposal', () => {
|
|
it('does not flush a retry boundary that resumes after plugin disposal', async () => {
|
|
const ctx = new Context()
|
|
await ctx.plugin(SystemPrompt)
|
|
await ctx.plugin(ToolRegistry)
|
|
const fiber = await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
const agent = await agentWithSession(ctx, 'disposed-in-flight-recovery')
|
|
const recoveryEntered = Promise.withResolvers<true>()
|
|
const releaseRecovery = Promise.withResolvers<true>()
|
|
ctx.on('agent/request-error', async (_agent, _turn, _step, _error, _failure, _history, _signal, _next) => {
|
|
recoveryEntered.resolve(true)
|
|
await releaseRecovery.promise
|
|
return { action: 'retry' }
|
|
})
|
|
ctx.modes.set(agent, PLAN_MODE)
|
|
|
|
const recovery = recoveryBoundary(ctx, agent, { action: 'fail' })
|
|
await recoveryEntered.promise
|
|
await fiber.dispose()
|
|
releaseRecovery.resolve(true)
|
|
|
|
expect(await recovery).toEqual({ action: 'retry' })
|
|
expect(agent.session.events.some(event => event.type === 'mode/set')).toBe(false)
|
|
})
|
|
|
|
it('unregisters the service, listeners, prompt section, and stable exit tool with the plugin fiber', async () => {
|
|
const ctx = new Context()
|
|
await ctx.plugin(SystemPrompt)
|
|
await ctx.plugin(ToolRegistry)
|
|
const fiber = await ctx.plugin(ModesService, PLAN_CONFIG)
|
|
const agent = await agentWithSession(ctx, 'disposed-recovery')
|
|
ctx.modes.set(agent, PLAN_MODE)
|
|
expect(ctx.get('modes')).toBeInstanceOf(ModesService)
|
|
expect(ctx.tools.get(EXIT_PLAN_MODE)).toBeDefined()
|
|
expect((await ctx.systemPrompt.assemble()).sections.map(section => section.name)).toContain('mode:policy')
|
|
|
|
await fiber.dispose()
|
|
expect(ctx.get('modes')).toBeUndefined()
|
|
expect(ctx.tools.get(EXIT_PLAN_MODE)).toBeUndefined()
|
|
expect((await ctx.systemPrompt.assemble()).sections.map(section => section.name)).not.toContain('mode:policy')
|
|
expect(await recoveryBoundary(ctx, agent, { action: 'retry' })).toEqual({ action: 'retry' })
|
|
expect(agent.session.events.some(event => event.type === 'mode/set')).toBe(false)
|
|
})
|
|
})
|