Yichen Jiang
1017 lines
42 KiB
TypeScript
1017 lines
42 KiB
TypeScript
import { chmod, mkdtemp, mkdir, rm, symlink, writeFile } from 'node:fs/promises'
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import { join } from 'node:path'
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import { tmpdir } from 'node:os'
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import { describe, expect, it, vi } from 'vitest'
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import { Context } from 'cordis'
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import Loader from '@cordisjs/plugin-loader'
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import * as projectInstructions from '@deepseek-ai/dsh-project-instructions'
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import { CallId, type GenerateOptions } from '@deepseek-ai/dsh-llm'
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import { Session, SessionId, SESSION_FORMAT_VERSION } from '@deepseek-ai/dsh-session'
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import type { Agent } from '@deepseek-ai/dsh-agent'
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import { AgentId } from '@deepseek-ai/dsh-agent'
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import { FileSystem, FsTargetKey, FsVersion } from '@deepseek-ai/dsh-fs'
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import type {
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FsDirEntry,
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FsEditOutcome,
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FsEditRequest,
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FsInfo,
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FsTarget,
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FsWriteIntent,
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FsWriteOutcome,
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} from '@deepseek-ai/dsh-fs'
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import LocalFileSystem from '@deepseek-ai/dsh-fs-local'
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import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
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import ToolRegistry from '@deepseek-ai/dsh-tools'
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import * as ToolFs from '@deepseek-ai/dsh-tool-fs'
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import {
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discoverBaselineInstructionFiles,
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loadBaselineInstructions,
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renderProjectInstructions,
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type InstructionContentCache,
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} from '@deepseek-ai/dsh-project-instructions'
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async function tempRepo(): Promise<string> {
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return mkdtemp(join(tmpdir(), 'dsh-project-instructions-'))
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}
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async function write(path: string, content: string): Promise<void> {
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await mkdir(join(path, '..'), { recursive: true })
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await writeFile(path, content)
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}
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class RecordingFileSystem extends FileSystem {
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entries = new Map<string, { type: FsInfo['type']; content?: string }>()
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throwOnStat = new Set<string>()
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readTargets: string[] = []
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override async resolve(path: string, opts?: { cwd?: string }): Promise<FsTarget> {
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const absolute = join(opts?.cwd ?? '/', path)
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return { targetKey: FsTargetKey(absolute), displayPath: absolute }
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}
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override async stat(target: FsTarget): Promise<FsInfo | undefined> {
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if (this.throwOnStat.has(target.targetKey)) throw new Error(`stat failed: ${target.displayPath}`)
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const entry = this.entries.get(target.targetKey)
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if (entry === undefined) return undefined
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const info: FsInfo = {
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version: FsVersion(`v:${target.targetKey}`),
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type: entry.type,
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}
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if (entry.content !== undefined) info.size = Buffer.byteLength(entry.content, 'utf8')
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return info
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}
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override async readText(target: FsTarget): Promise<string> {
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this.readTargets.push(target.targetKey)
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return this.entries.get(target.targetKey)?.content ?? ''
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}
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override async streamText(target: FsTarget): Promise<AsyncIterable<string>> {
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const content = await this.readText(target)
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return (async function* () { yield content })()
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}
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override async listDir(_target: FsTarget): Promise<FsDirEntry[]> {
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return []
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}
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override async writeText(_target: FsTarget, _content: string, _expected?: FsWriteIntent): Promise<FsWriteOutcome> {
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return { operation: 'update', version: FsVersion('unused'), before: '', after: _content }
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}
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override async editText(_target: FsTarget, _edit: FsEditRequest): Promise<FsEditOutcome> {
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return { version: FsVersion('unused'), before: '', after: '' }
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}
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}
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async function mountProjectInstructions(ctx: Context, config: projectInstructions.Config): Promise<Awaited<ReturnType<Context['plugin']>>> {
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await ctx.plugin(LocalFileSystem, { cwd: '/' })
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return ctx.plugin(projectInstructions, config)
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}
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async function mountFileToolsAndProjectInstructions(ctx: Context, config: projectInstructions.Config): Promise<Awaited<ReturnType<Context['plugin']>>> {
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await ctx.plugin(SystemPrompt)
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await ctx.plugin(ToolRegistry)
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await ctx.plugin(LocalFileSystem, { cwd: '/' })
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await ctx.plugin(ToolFs)
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return ctx.plugin(projectInstructions, config)
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}
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function stubAgent(cwd?: string): Agent {
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const id = SessionId('s1')
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const session = new Session(id, [], cwd === undefined ? undefined : { version: SESSION_FORMAT_VERSION, id, createdAt: 0, cwd })
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return {
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id: AgentId('a1'),
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options: {},
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session,
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status: 'idle',
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send() {},
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steer() {},
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inject() {},
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cancel() {},
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whenIdle: () => Promise.resolve(),
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}
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}
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function firstText(message: GenerateOptions['messages'][number] | undefined): string | undefined {
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const block = message?.content[0]
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return block?.type === 'text' ? block.text : undefined
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}
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function blocksText(blocks: { type: string; text?: string }[] | undefined): string {
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return blocks?.map(block => block.type === 'text' ? block.text ?? '' : '').join('\n') ?? ''
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}
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describe('project instruction discovery', () => {
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it('loads user-global first, then root-to-cwd project instructions with AGENTS.md winning over CLAUDE.md', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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const cwd = join(root, 'packages/app')
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await mkdir(join(root, '.git'), { recursive: true })
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await write(join(home, 'AGENTS.md'), 'global rules')
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await write(join(root, 'AGENTS.md'), 'root agents')
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await write(join(root, 'CLAUDE.md'), 'root claude ignored')
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await write(join(root, 'packages/CLAUDE.md'), 'package claude')
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await write(join(cwd, 'AGENTS.md'), 'app agents')
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const files = await discoverBaselineInstructionFiles({
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cwd,
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dshHome: home,
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enableClaudeFallback: true,
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})
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expect(files.map(file => file.displayPath)).toEqual([
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'$DSH_HOME/AGENTS.md',
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'AGENTS.md',
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'packages/CLAUDE.md',
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'packages/app/AGENTS.md',
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])
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expect(files.map(file => file.absolutePath)).not.toContain(join(root, 'CLAUDE.md'))
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('treats a .git file as a project root marker and does not search above it', async () => {
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const outer = await tempRepo()
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const home = await tempRepo()
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try {
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const root = join(outer, 'worktree')
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const cwd = join(root, 'src')
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await write(join(outer, 'AGENTS.md'), 'outer must not load')
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await write(join(root, '.git'), 'gitdir: ../.git/worktrees/worktree')
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await write(join(root, 'AGENTS.md'), 'root')
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await mkdir(cwd, { recursive: true })
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const files = await discoverBaselineInstructionFiles({ cwd, dshHome: home })
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expect(files.map(file => file.displayPath)).toEqual(['AGENTS.md'])
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} finally {
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await rm(outer, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('re-walks the baseline path and re-reads content when file signatures change', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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const cwd = join(root, 'pkg')
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await mkdir(join(root, '.git'), { recursive: true })
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await mkdir(cwd, { recursive: true })
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const cache: InstructionContentCache = new Map()
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expect(await loadBaselineInstructions({ cwd, dshHome: home, cache })).toBeUndefined()
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const leaf = join(cwd, 'AGENTS.md')
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await write(leaf, 'first')
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const first = await loadBaselineInstructions({ cwd, dshHome: home, cache })
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expect(first?.text).toContain('first')
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const cached = await loadBaselineInstructions({ cwd, dshHome: home, cache })
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expect(cached?.text).toContain('first')
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await new Promise(resolve => setTimeout(resolve, 5))
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await writeFile(leaf, 'second and longer')
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const second = await loadBaselineInstructions({ cwd, dshHome: home, cache })
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expect(second?.text).toContain('second and longer')
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expect(second?.text).not.toContain('first')
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('skips a file that becomes unreadable after discovery without failing the request', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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const cwd = join(root, 'pkg')
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await mkdir(join(root, '.git'), { recursive: true })
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await mkdir(cwd, { recursive: true })
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const leaf = join(cwd, 'AGENTS.md')
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await write(leaf, 'secret-ish rule')
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await chmod(leaf, 0)
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const loaded = await loadBaselineInstructions({ cwd, dshHome: home })
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expect(loaded).toBeUndefined()
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await chmod(leaf, 0o600)
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('rejects symlinked instruction files instead of following repository-controlled links', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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const outside = await tempRepo()
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try {
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await mkdir(join(root, '.git'), { recursive: true })
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await write(join(outside, 'secret.txt'), 'outside secret')
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await symlink(join(outside, 'secret.txt'), join(root, 'AGENTS.md'))
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const files = await discoverBaselineInstructionFiles({ cwd: root, dshHome: home })
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const loaded = await loadBaselineInstructions({ cwd: root, dshHome: home })
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expect(files).toEqual([])
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expect(loaded).toBeUndefined()
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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await rm(outside, { recursive: true, force: true })
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}
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})
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it('disables baseline loading when the byte budget is zero', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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await mkdir(join(root, '.git'), { recursive: true })
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await write(join(root, 'AGENTS.md'), 'repo rule')
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await expect(loadBaselineInstructions({ cwd: root, dshHome: home, baselineMaxBytes: 0 })).resolves.toBeUndefined()
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('does not load CLAUDE.md when Claude fallback is disabled', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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await mkdir(join(root, '.git'), { recursive: true })
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await write(join(root, 'CLAUDE.md'), 'claude only')
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const files = await discoverBaselineInstructionFiles({ cwd: root, dshHome: home, enableClaudeFallback: false })
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expect(files).toEqual([])
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('defaults dshHome and uses cwd itself as root when no project marker exists', async () => {
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const root = await tempRepo()
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try {
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const cwd = join(root, 'child')
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await mkdir(cwd, { recursive: true })
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await write(join(root, 'AGENTS.md'), 'parent without marker')
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await write(join(cwd, 'AGENTS.md'), 'cwd without marker')
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const files = await discoverBaselineInstructionFiles({ cwd })
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expect(files.map(file => file.displayPath)).toEqual(['AGENTS.md'])
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expect(files.map(file => file.absolutePath)).toEqual([join(cwd, 'AGENTS.md')])
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} finally {
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await rm(root, { recursive: true, force: true })
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}
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})
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it('honors DSH_HOME when dshHome is not configured explicitly', async () => {
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const root = await tempRepo()
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const envHome = await tempRepo()
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try {
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await write(join(envHome, 'AGENTS.md'), 'env global rule')
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vi.stubEnv('DSH_HOME', envHome)
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const files = await discoverBaselineInstructionFiles({ cwd: root })
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expect(files).toEqual([{ absolutePath: join(envHome, 'AGENTS.md'), displayPath: '$DSH_HOME/AGENTS.md' }])
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} finally {
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vi.unstubAllEnvs()
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await rm(root, { recursive: true, force: true })
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await rm(envHome, { recursive: true, force: true })
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}
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})
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it('labels the default DSH home as ~/.dsh when HOME points at the configured default', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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await write(join(home, '.dsh/AGENTS.md'), 'global default rule')
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vi.resetModules()
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vi.doMock('node:os', () => ({ homedir: () => home }))
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const isolated = await import('@deepseek-ai/dsh-project-instructions')
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const files = await isolated.discoverBaselineInstructionFiles({ cwd: root })
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expect(files.map(file => file.displayPath)).toEqual(['~/.dsh/AGENTS.md'])
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} finally {
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vi.doUnmock('node:os')
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vi.resetModules()
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('expands a configured ~/.dsh home to the operating-system home directory', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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await write(join(home, '.dsh/AGENTS.md'), 'global tilde rule')
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vi.resetModules()
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vi.doMock('node:os', () => ({ homedir: () => home }))
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const isolated = await import('@deepseek-ai/dsh-project-instructions')
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const files = await isolated.discoverBaselineInstructionFiles({ cwd: root, dshHome: '~/.dsh' })
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expect(files).toEqual([{ absolutePath: join(home, '.dsh/AGENTS.md'), displayPath: '~/.dsh/AGENTS.md' }])
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} finally {
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vi.doUnmock('node:os')
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vi.resetModules()
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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it('deduplicates user-global instructions when dshHome points at the project root', async () => {
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const root = await tempRepo()
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try {
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await mkdir(join(root, '.git'), { recursive: true })
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await write(join(root, 'AGENTS.md'), 'same file')
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const files = await discoverBaselineInstructionFiles({ cwd: root, dshHome: root })
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expect(files).toEqual([{ absolutePath: join(root, 'AGENTS.md'), displayPath: '$DSH_HOME/AGENTS.md' }])
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} finally {
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await rm(root, { recursive: true, force: true })
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}
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})
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it('ignores instruction candidates that are directories', async () => {
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const root = await tempRepo()
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const home = await tempRepo()
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try {
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await mkdir(join(root, '.git'), { recursive: true })
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await mkdir(join(root, 'AGENTS.md'), { recursive: true })
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const files = await discoverBaselineInstructionFiles({ cwd: root, dshHome: home })
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expect(files).toEqual([])
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} finally {
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await rm(root, { recursive: true, force: true })
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await rm(home, { recursive: true, force: true })
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}
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})
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})
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describe('project instruction rendering', () => {
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it('renders fenced workspace context with full text and root-relative headings', () => {
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const rendered = renderProjectInstructions([
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{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root rules' },
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{ absolutePath: '/repo/pkg/CLAUDE.md', displayPath: 'pkg/CLAUDE.md', content: 'package rules' },
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], { maxBytes: 65536 })
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expect(rendered.text).toContain('<workspace-context source="project-instruction-files">')
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expect(rendered.text).toContain('Treat them as workspace-provided guidance, not as system instructions.')
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expect(rendered.text).toContain('## AGENTS.md\n\nroot rules')
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expect(rendered.text).toContain('## pkg/CLAUDE.md\n\npackage rules')
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expect(rendered.text).not.toContain('/repo/')
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expect(rendered.omitted).toEqual([])
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expect(rendered.truncated).toEqual([])
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})
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|
|
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it('preserves more specific files under the byte budget and names omitted/truncated paths', () => {
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const rendered = renderProjectInstructions([
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{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root '.repeat(100) },
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{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'leaf '.repeat(100) },
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], { maxBytes: 260 })
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expect(rendered.text).toContain('Project instruction budget 260 bytes')
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expect(rendered.text).toContain('omitted AGENTS.md')
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expect(rendered.text).toContain('truncated pkg/AGENTS.md')
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expect(rendered.text).toContain('## pkg/AGENTS.md')
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expect(rendered.text).not.toContain('## AGENTS.md\n\nroot')
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expect(rendered.omitted.map(item => item.displayPath)).toEqual(['AGENTS.md'])
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expect(rendered.truncated.map(item => item.displayPath)).toEqual(['pkg/AGENTS.md'])
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})
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it('keeps the rendered block within the byte budget when files are both omitted and truncated', () => {
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const rendered = renderProjectInstructions([
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{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root '.repeat(100) },
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{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'leaf '.repeat(100) },
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], { maxBytes: 260 })
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expect(Buffer.byteLength(rendered.text, 'utf8')).toBeLessThanOrEqual(260)
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expect(rendered.text).not.toContain(':;')
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expect(rendered.omitted.map(item => item.displayPath)).toEqual(['AGENTS.md'])
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expect(rendered.truncated.map(item => item.displayPath)).toEqual(['pkg/AGENTS.md'])
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})
|
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|
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it('drops a parent file while keeping a specific child file intact when the child fits', () => {
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|
const rendered = renderProjectInstructions([
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{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root '.repeat(200) },
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{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'leaf rule' },
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], { maxBytes: 700 })
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expect(rendered.text).toContain('omitted AGENTS.md')
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expect(rendered.text).toContain('## pkg/AGENTS.md\n\nleaf rule')
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expect(rendered.text).not.toContain('root root')
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expect(rendered.omitted.map(item => item.displayPath)).toEqual(['AGENTS.md'])
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expect(rendered.truncated).toEqual([])
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})
|
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|
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it('keeps the longest most-specific suffix that fits under the byte budget', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root '.repeat(200) },
|
|
{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'package rule' },
|
|
{ absolutePath: '/repo/pkg/app/AGENTS.md', displayPath: 'pkg/app/AGENTS.md', content: 'app rule' },
|
|
], { maxBytes: 760 })
|
|
|
|
expect(rendered.text).toContain('omitted AGENTS.md')
|
|
expect(rendered.text).toContain('## pkg/AGENTS.md\n\npackage rule')
|
|
expect(rendered.text).toContain('## pkg/app/AGENTS.md\n\napp rule')
|
|
expect(rendered.text).not.toContain('root root')
|
|
expect(rendered.omitted.map(item => item.displayPath)).toEqual(['AGENTS.md'])
|
|
expect(rendered.truncated).toEqual([])
|
|
})
|
|
|
|
it('truncates a single oversized file to the largest content slice that fits', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'x'.repeat(1000) },
|
|
], { maxBytes: 700 })
|
|
|
|
expect(rendered.text).toContain('truncated AGENTS.md')
|
|
expect(rendered.text).toContain('## AGENTS.md')
|
|
expect(rendered.truncated).toHaveLength(1)
|
|
expect(rendered.truncated[0]?.originalBytes).toBe(1000)
|
|
expect(rendered.truncated[0]!.includedBytes).toBeGreaterThan(0)
|
|
expect(Buffer.byteLength(rendered.text, 'utf8')).toBeLessThanOrEqual(700)
|
|
})
|
|
|
|
it('omits all text when the render budget is disabled', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root rules' },
|
|
], { maxBytes: 0 })
|
|
|
|
expect(rendered).toEqual({
|
|
text: '',
|
|
omitted: [{ absolutePath: '/repo/AGENTS.md', displayPath: 'AGENTS.md', content: 'root rules' }],
|
|
truncated: [],
|
|
})
|
|
})
|
|
|
|
it('falls back to a compact truncation notice when even the empty heading cannot fit', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'x'.repeat(1000) },
|
|
], { maxBytes: 100 })
|
|
|
|
expect(rendered.text).toBe('<!-- Project instruction budget 100 bytes: truncated pkg/AGENTS.md from 1000 to 0 bytes -->')
|
|
expect(rendered.truncated).toEqual([{ displayPath: 'pkg/AGENTS.md', originalBytes: 1000, includedBytes: 0 }])
|
|
expect(Buffer.byteLength(rendered.text, 'utf8')).toBeLessThanOrEqual(100)
|
|
})
|
|
|
|
it('truncates the compact notice itself when the render budget is smaller than the notice', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/pkg/AGENTS.md', displayPath: 'pkg/AGENTS.md', content: 'x'.repeat(1000) },
|
|
], { maxBytes: 20 })
|
|
|
|
expect(rendered.text).toBe('<!-- Project instruc')
|
|
expect(rendered.truncated).toEqual([{ displayPath: 'pkg/AGENTS.md', originalBytes: 1000, includedBytes: 0 }])
|
|
expect(Buffer.byteLength(rendered.text, 'utf8')).toBe(20)
|
|
})
|
|
|
|
it('keeps compact truncation notices within budget when a multibyte display path is cut', () => {
|
|
const rendered = renderProjectInstructions([
|
|
{ absolutePath: '/repo/路径/AGENTS.md', displayPath: '路径/AGENTS.md', content: 'x'.repeat(1000) },
|
|
], { maxBytes: 53 })
|
|
|
|
expect(Buffer.byteLength(rendered.text, 'utf8')).toBeLessThanOrEqual(53)
|
|
})
|
|
})
|
|
|
|
describe('project instruction request injection', () => {
|
|
it('prepends a synthetic user workspace-context message without mutating the system prompt', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
const ctx = new Context()
|
|
await mountProjectInstructions(ctx, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
system: 'real system',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.system).toBe('real system')
|
|
expect(result.messages).toHaveLength(2)
|
|
expect(result.messages[0]?.role).toBe('user')
|
|
expect(firstText(result.messages[0])).toContain('<workspace-context source="project-instruction-files">')
|
|
expect(firstText(result.messages[0])).toContain('repo rule')
|
|
expect(result.messages[1]).toEqual({ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] })
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('loads instruction file content through ctx.fs instead of direct node reads', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'node fs rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.entries.set(join(root, '.git'), { type: 'directory' })
|
|
fs.entries.set(join(root, 'AGENTS.md'), { type: 'file', content: 'ctx.fs rule' })
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(firstText(result.messages[0])).toContain('ctx.fs rule')
|
|
expect(firstText(result.messages[0])).not.toContain('node fs rule')
|
|
expect(fs.readTargets).toEqual([join(root, 'AGENTS.md')])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('loads user-global and CLAUDE fallback content through ctx.fs', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(home, 'AGENTS.md'), 'node global rule')
|
|
await write(join(root, 'CLAUDE.md'), 'node claude rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.entries.set(join(root, '.git'), { type: 'directory' })
|
|
fs.entries.set(join(home, 'AGENTS.md'), { type: 'file', content: 'ctx global rule' })
|
|
fs.entries.set(join(root, 'CLAUDE.md'), { type: 'file', content: 'ctx claude rule' })
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(firstText(result.messages[0])).toContain('ctx global rule')
|
|
expect(firstText(result.messages[0])).toContain('ctx claude rule')
|
|
expect(firstText(result.messages[0])).not.toContain('node global rule')
|
|
expect(firstText(result.messages[0])).not.toContain('node claude rule')
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('skips lstat-visible instruction files when ctx.fs reports a non-file target', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'node fs rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.entries.set(join(root, '.git'), { type: 'directory' })
|
|
fs.entries.set(join(root, 'AGENTS.md'), { type: 'directory' })
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('loads instruction files when ctx.fs omits the metadata size', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'node fs rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.entries.set(join(root, '.git'), { type: 'directory' })
|
|
fs.entries.set(join(root, 'AGENTS.md'), { type: 'file' })
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(firstText(result.messages[0])).toContain('## AGENTS.md')
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('skips lstat-visible instruction files when ctx.fs cannot stat them', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'node fs rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.entries.set(join(root, '.git'), { type: 'directory' })
|
|
fs.throwOnStat.add(join(root, 'AGENTS.md'))
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('treats ctx.fs marker lookup failures as absent root markers', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(RecordingFileSystem)
|
|
const fs = ctx.fs as RecordingFileSystem
|
|
fs.throwOnStat.add(join(root, '.git'))
|
|
fs.entries.set(join(root, 'AGENTS.md'), { type: 'file', content: 'repo rule' })
|
|
await ctx.plugin(projectInstructions, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(firstText(result.messages[0])).toContain('repo rule')
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('keeps different session cwd instruction files isolated in one context', async () => {
|
|
const repoA = await tempRepo()
|
|
const repoB = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(repoA, '.git'), { recursive: true })
|
|
await mkdir(join(repoB, '.git'), { recursive: true })
|
|
await write(join(repoA, 'AGENTS.md'), 'repo A only')
|
|
await write(join(repoB, 'AGENTS.md'), 'repo B only')
|
|
const ctx = new Context()
|
|
await mountProjectInstructions(ctx, { dshHome: home })
|
|
const requestA: GenerateOptions = { model: 'mock', messages: [{ role: 'user', content: [{ type: 'text', text: 'A' }] }] }
|
|
const requestB: GenerateOptions = { model: 'mock', messages: [{ role: 'user', content: [{ type: 'text', text: 'B' }] }] }
|
|
|
|
const resultA = await ctx.waterfall('agent/request', stubAgent(repoA), 1, 1, requestA, async () => requestA)
|
|
const resultB = await ctx.waterfall('agent/request', stubAgent(repoB), 1, 1, requestB, async () => requestB)
|
|
|
|
expect(firstText(resultA.messages[0])).toContain('repo A only')
|
|
expect(firstText(resultA.messages[0])).not.toContain('repo B only')
|
|
expect(firstText(resultB.messages[0])).toContain('repo B only')
|
|
expect(firstText(resultB.messages[0])).not.toContain('repo A only')
|
|
} finally {
|
|
await rm(repoA, { recursive: true, force: true })
|
|
await rm(repoB, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('uses schema defaults on the plugin path so ancestor discovery still finds .git roots', async () => {
|
|
const root = await tempRepo()
|
|
try {
|
|
const cwd = join(root, 'child')
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await mkdir(cwd, { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'root schema default rule')
|
|
await write(join(cwd, 'AGENTS.md'), 'child schema default rule')
|
|
const ctx = new Context()
|
|
await ctx.plugin(LocalFileSystem, { cwd: '/' })
|
|
await ctx.plugin(projectInstructions, {})
|
|
const request: GenerateOptions = { model: 'mock', messages: [{ role: 'user', content: [{ type: 'text', text: 'prompt' }] }] }
|
|
|
|
const result = await ctx.waterfall('agent/request', stubAgent(cwd), 1, 1, request, async () => request)
|
|
|
|
expect(firstText(result.messages[0])).toContain('## AGENTS.md\n\nroot schema default rule')
|
|
expect(firstText(result.messages[0])).toContain('## child/AGENTS.md\n\nchild schema default rule')
|
|
await ctx.fiber.dispose()
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('cleans up its agent/request listener when the plugin fiber is disposed', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
const ctx = new Context()
|
|
const fiber = await mountProjectInstructions(ctx, { dshHome: home })
|
|
await fiber.dispose()
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('does not inject anything when baselineMaxBytes is zero', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
const ctx = new Context()
|
|
await mountProjectInstructions(ctx, { dshHome: home, baselineMaxBytes: 0 })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('does not inject an empty workspace-context message when baselineMaxBytes is negative', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
const ctx = new Context()
|
|
await mountProjectInstructions(ctx, { dshHome: home, baselineMaxBytes: -1 })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('leaves the request unchanged when no instruction files are present', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
const ctx = new Context()
|
|
await mountProjectInstructions(ctx, { dshHome: home })
|
|
|
|
const request: GenerateOptions = {
|
|
model: 'mock',
|
|
messages: [{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }],
|
|
}
|
|
const result = await ctx.waterfall('agent/request', stubAgent(root), 1, 1, request, async () => request)
|
|
|
|
expect(result.messages).toEqual([{ role: 'user', content: [{ type: 'text', text: 'actual prompt' }] }])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('labels a custom dshHome as DSH_HOME instead of pretending it is ~/.dsh', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await write(join(home, 'AGENTS.md'), 'global custom rule')
|
|
const files = await discoverBaselineInstructionFiles({ cwd: root, dshHome: home })
|
|
|
|
expect(files.map(file => file.displayPath)).toEqual(['$DSH_HOME/AGENTS.md'])
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('reuses the discovery lstat signature when reading cached content', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'repo rule')
|
|
|
|
const observedStats = new Map<string, number>()
|
|
vi.resetModules()
|
|
vi.doMock('node:fs/promises', async (importOriginal) => {
|
|
const actual = await importOriginal<typeof import('node:fs/promises')>()
|
|
return {
|
|
...actual,
|
|
lstat: async (path: string) => {
|
|
observedStats.set(path, (observedStats.get(path) ?? 0) + 1)
|
|
return actual.lstat(path)
|
|
},
|
|
}
|
|
})
|
|
const isolated = await import('@deepseek-ai/dsh-project-instructions')
|
|
const cache: InstructionContentCache = new Map()
|
|
|
|
await isolated.loadBaselineInstructions({ cwd: root, dshHome: home, cache })
|
|
observedStats.clear()
|
|
await isolated.loadBaselineInstructions({ cwd: root, dshHome: home, cache })
|
|
|
|
expect(observedStats.get(join(root, 'AGENTS.md'))).toBe(1)
|
|
} finally {
|
|
vi.doUnmock('node:fs/promises')
|
|
vi.resetModules()
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
})
|
|
|
|
describe('dynamic nested project instruction injection', () => {
|
|
it('attaches newly discovered nested instructions after a successful file read touches a descendant path', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'AGENTS.md'), 'baseline root rule')
|
|
await write(join(root, 'pkg/AGENTS.md'), 'nested package rule')
|
|
await write(join(root, 'pkg/deep/file.txt'), 'hello')
|
|
const ctx = new Context()
|
|
await mountFileToolsAndProjectInstructions(ctx, { dshHome: home })
|
|
const agent = stubAgent(root)
|
|
|
|
const result = await ctx.tools.execute({
|
|
callId: CallId('read-nested'),
|
|
name: 'read',
|
|
arguments: { file_path: 'pkg/deep/file.txt' },
|
|
agent,
|
|
})
|
|
|
|
expect(result.isError).toBe(false)
|
|
expect(result.additionalContext?.source).toEqual({ kind: 'plugin', plugin: 'project-instructions' })
|
|
const text = blocksText(result.additionalContext?.content)
|
|
expect(text).toContain('<workspace-context source="project-instruction-files">')
|
|
expect(text).toContain('## pkg/AGENTS.md\n\nnested package rule')
|
|
expect(text).not.toContain('baseline root rule')
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('does not attach nested instructions again for the same session once a path has been loaded', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'pkg/AGENTS.md'), 'nested package rule')
|
|
await write(join(root, 'pkg/deep/file.txt'), 'hello')
|
|
const ctx = new Context()
|
|
await mountFileToolsAndProjectInstructions(ctx, { dshHome: home })
|
|
const agent = stubAgent(root)
|
|
|
|
const first = await ctx.tools.execute({
|
|
callId: CallId('read-nested-1'),
|
|
name: 'read',
|
|
arguments: { file_path: 'pkg/deep/file.txt' },
|
|
agent,
|
|
})
|
|
const second = await ctx.tools.execute({
|
|
callId: CallId('read-nested-2'),
|
|
name: 'read',
|
|
arguments: { file_path: 'pkg/deep/file.txt' },
|
|
agent,
|
|
})
|
|
|
|
expect(first.additionalContext).toBeDefined()
|
|
expect(second.additionalContext).toBeUndefined()
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('does not attach nested instructions after a failed file read', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'pkg/AGENTS.md'), 'nested package rule')
|
|
const ctx = new Context()
|
|
await mountFileToolsAndProjectInstructions(ctx, { dshHome: home })
|
|
|
|
const result = await ctx.tools.execute({
|
|
callId: CallId('read-missing'),
|
|
name: 'read',
|
|
arguments: { file_path: 'pkg/missing.txt' },
|
|
agent: stubAgent(root),
|
|
})
|
|
|
|
expect(result.isError).toBe(true)
|
|
expect(result.additionalContext).toBeUndefined()
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
|
|
it('cleans up its tools/post-execute listener when the plugin fiber is disposed', async () => {
|
|
const root = await tempRepo()
|
|
const home = await tempRepo()
|
|
try {
|
|
await mkdir(join(root, '.git'), { recursive: true })
|
|
await write(join(root, 'pkg/AGENTS.md'), 'nested package rule')
|
|
await write(join(root, 'pkg/deep/file.txt'), 'hello')
|
|
const ctx = new Context()
|
|
const fiber = await mountFileToolsAndProjectInstructions(ctx, { dshHome: home })
|
|
await fiber.dispose()
|
|
|
|
const result = await ctx.tools.execute({
|
|
callId: CallId('read-after-dispose'),
|
|
name: 'read',
|
|
arguments: { file_path: 'pkg/deep/file.txt' },
|
|
agent: stubAgent(root),
|
|
})
|
|
|
|
expect(result.isError).toBe(false)
|
|
expect(result.additionalContext).toBeUndefined()
|
|
} finally {
|
|
await rm(root, { recursive: true, force: true })
|
|
await rm(home, { recursive: true, force: true })
|
|
}
|
|
})
|
|
})
|
|
|
|
describe('project instruction plugin export shape', () => {
|
|
it('has the namespace-plugin export shape (no stray default) so the Loader keeps name/Config/apply', () => {
|
|
expect('default' in projectInstructions).toBe(false)
|
|
expect(typeof projectInstructions.apply).toBe('function')
|
|
|
|
const loader = Object.create(Loader.prototype) as Loader
|
|
const unwrapped = loader.unwrapExports(projectInstructions) as Record<string, unknown>
|
|
expect(unwrapped).toBe(projectInstructions)
|
|
expect(unwrapped.name).toBe('project-instructions')
|
|
expect(unwrapped.Config).toBeDefined()
|
|
expect(typeof unwrapped.apply).toBe('function')
|
|
})
|
|
})
|