Files
gemini-cli/evals/memory_persistence.eval.ts
2026-05-13 21:22:56 +00:00

562 lines
19 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, expect } from 'vitest';
import fs from 'node:fs';
import path from 'node:path';
import {
loadConversationRecord,
SESSION_FILE_PREFIX,
} from '@google/gemini-cli-core';
import { evalTest, assertModelHasOutput } from './test-helper.js';
function findDir(base: string, name: string): string | null {
if (!fs.existsSync(base)) return null;
const files = fs.readdirSync(base);
for (const file of files) {
const fullPath = path.join(base, file);
if (fs.statSync(fullPath).isDirectory()) {
if (file === name) return fullPath;
const found = findDir(fullPath, name);
if (found) return found;
}
}
return null;
}
async function loadLatestSessionRecord(homeDir: string, sessionId: string) {
const chatsDir = findDir(path.join(homeDir, '.gemini'), 'chats');
if (!chatsDir) {
throw new Error('Could not find chats directory for eval session logs');
}
const candidates = fs
.readdirSync(chatsDir)
.filter(
(file) =>
file.startsWith(SESSION_FILE_PREFIX) &&
(file.endsWith('.json') || file.endsWith('.jsonl')),
);
const matchingRecords = [];
for (const file of candidates) {
const filePath = path.join(chatsDir, file);
const record = await loadConversationRecord(filePath);
if (record?.sessionId === sessionId) {
matchingRecords.push(record);
}
}
matchingRecords.sort(
(a, b) => Date.parse(b.lastUpdated) - Date.parse(a.lastUpdated),
);
return matchingRecords[0] ?? null;
}
async function waitForSessionScratchpad(
homeDir: string,
sessionId: string,
timeoutMs = 30000,
) {
const deadline = Date.now() + timeoutMs;
while (Date.now() < deadline) {
const record = await loadLatestSessionRecord(homeDir, sessionId);
if (record?.memoryScratchpad) {
return record;
}
await new Promise((resolve) => setTimeout(resolve, 1000));
}
return loadLatestSessionRecord(homeDir, sessionId);
}
describe('memory persistence', () => {
const proactiveMemoryFromLongSession =
'Agent saves preference from earlier in conversation history';
evalTest('USUALLY_PASSES', {
suiteName: 'default',
suiteType: 'behavioral',
name: proactiveMemoryFromLongSession,
messages: [
{
id: 'msg-1',
type: 'user',
content: [
{
text: 'By the way, I always prefer Vitest over Jest for testing in all my projects.',
},
],
timestamp: '2026-01-01T00:00:00Z',
},
{
id: 'msg-2',
type: 'gemini',
content: [{ text: 'Noted! What are you working on today?' }],
timestamp: '2026-01-01T00:00:05Z',
},
{
id: 'msg-3',
type: 'user',
content: [
{
text: "I'm debugging a failing API endpoint. The /users route returns a 500 error.",
},
],
timestamp: '2026-01-01T00:01:00Z',
},
{
id: 'msg-4',
type: 'gemini',
content: [
{
text: 'It looks like the database connection might not be initialized before the query runs.',
},
],
timestamp: '2026-01-01T00:01:10Z',
},
{
id: 'msg-5',
type: 'user',
content: [
{ text: 'Good catch — I fixed the import and the route works now.' },
],
timestamp: '2026-01-01T00:02:00Z',
},
{
id: 'msg-6',
type: 'gemini',
content: [{ text: 'Great! Anything else you would like to work on?' }],
timestamp: '2026-01-01T00:02:05Z',
},
],
prompt:
'Please save any persistent preferences or facts about me from our conversation to memory.',
assert: async (rig, result) => {
// The agent persists memories by editing markdown files directly with
// write_file or replace. The user said
// "I always prefer Vitest over
// Jest for testing in all my projects" — that matches the new
// cross-project cue phrase ("across all my projects"), so under the
// 4-tier model the correct destination is the global personal memory
// file (~/.gemini/GEMINI.md). It must NOT land in a committed project
// GEMINI.md (that tier is for team conventions) or the per-project
// private memory folder (that tier is for project-specific personal
// notes). The chat history mixes this durable preference with
// transient debugging chatter, so the eval also verifies the agent
// picks out the persistent fact among the noise.
await rig.waitForToolCall('write_file').catch(() => {});
const writeCalls = rig
.readToolLogs()
.filter((log) =>
['write_file', 'replace'].includes(log.toolRequest.name),
);
const wroteVitestToGlobal = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/GEMINI\.md/i.test(args) &&
!/tmp\/[^/]+\/memory/i.test(args) &&
/vitest/i.test(args)
);
});
expect(
wroteVitestToGlobal,
'Expected the cross-project Vitest preference to be written to the global personal memory file (~/.gemini/GEMINI.md) via write_file or replace',
).toBe(true);
const leakedToCommittedProject = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/GEMINI\.md/i.test(args) &&
!/\.gemini\//i.test(args) &&
/vitest/i.test(args)
);
});
expect(
leakedToCommittedProject,
'Cross-project Vitest preference must NOT be mirrored into a committed project ./GEMINI.md (that tier is for team-shared conventions only)',
).toBe(false);
const leakedToPrivateProject = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/tmp\/[^/]+\/memory\//i.test(args) && /vitest/i.test(args)
);
});
expect(
leakedToPrivateProject,
'Cross-project Vitest preference must NOT be mirrored into the private project memory folder (that tier is for project-specific personal notes only)',
).toBe(false);
assertModelHasOutput(result);
},
});
const memoryRoutesTeamConventionsToProjectGemini =
'Agent routes team-shared project conventions to ./GEMINI.md';
evalTest('USUALLY_PASSES', {
suiteName: 'default',
suiteType: 'behavioral',
name: memoryRoutesTeamConventionsToProjectGemini,
messages: [
{
id: 'msg-1',
type: 'user',
content: [
{
text: 'For this project, the team always runs tests with `npm run test` — please remember that as our project convention.',
},
],
timestamp: '2026-01-01T00:00:00Z',
},
{
id: 'msg-2',
type: 'gemini',
content: [
{ text: 'Got it, I will keep `npm run test` in mind for tests.' },
],
timestamp: '2026-01-01T00:00:05Z',
},
{
id: 'msg-3',
type: 'user',
content: [
{
text: 'For this project specifically, we use 2-space indentation.',
},
],
timestamp: '2026-01-01T00:01:00Z',
},
{
id: 'msg-4',
type: 'gemini',
content: [
{ text: 'Understood, 2-space indentation for this project.' },
],
timestamp: '2026-01-01T00:01:05Z',
},
],
prompt: 'Please save the preferences I mentioned earlier to memory.',
assert: async (rig, result) => {
// The prompt enforces an explicit one-tier-per-fact rule: team-shared
// project conventions (the team's test command, project-wide
// indentation rules) belong in the committed project-root ./GEMINI.md
// and must NOT be mirrored or cross-referenced into the private project
// memory folder
// (~/.gemini/tmp/<hash>/memory/). The global ~/.gemini/GEMINI.md must
// never be touched in this mode either.
await rig.waitForToolCall('write_file').catch(() => {});
const writeCalls = rig
.readToolLogs()
.filter((log) =>
['write_file', 'replace'].includes(log.toolRequest.name),
);
const wroteToProjectRoot = (factPattern: RegExp) =>
writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/GEMINI\.md/i.test(args) &&
!/\.gemini\//i.test(args) &&
factPattern.test(args)
);
});
expect(
wroteToProjectRoot(/npm run test/i),
'Expected the team test-command convention to be written to the project-root ./GEMINI.md',
).toBe(true);
expect(
wroteToProjectRoot(/2[- ]space/i),
'Expected the project-wide "2-space indentation" convention to be written to the project-root ./GEMINI.md',
).toBe(true);
const leakedToPrivateMemory = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/tmp\/[^/]+\/memory\//i.test(args) &&
(/npm run test/i.test(args) || /2[- ]space/i.test(args))
);
});
expect(
leakedToPrivateMemory,
'Team-shared project conventions must NOT be mirrored into the private project memory folder (~/.gemini/tmp/<hash>/memory/) — each fact lives in exactly one tier.',
).toBe(false);
const leakedToGlobal = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/GEMINI\.md/i.test(args) &&
!/tmp\/[^/]+\/memory/i.test(args)
);
});
expect(
leakedToGlobal,
'Project preferences must NOT be written to the global ~/.gemini/GEMINI.md',
).toBe(false);
assertModelHasOutput(result);
},
});
const memorySessionScratchpad =
'Session summary persists memory scratchpad for memory-saving sessions';
evalTest('USUALLY_PASSES', {
suiteName: 'default',
suiteType: 'behavioral',
name: memorySessionScratchpad,
sessionId: 'memory-scratchpad-eval',
messages: [
{
id: 'msg-1',
type: 'user',
content: [
{
text: 'Across all my projects, I prefer Vitest over Jest for testing.',
},
],
timestamp: '2026-01-01T00:00:00Z',
},
{
id: 'msg-2',
type: 'gemini',
content: [{ text: 'Noted. What else should I keep in mind?' }],
timestamp: '2026-01-01T00:00:05Z',
},
{
id: 'msg-3',
type: 'user',
content: [
{
text: 'For this repo I was debugging a flaky API test earlier, but that was just transient context.',
},
],
timestamp: '2026-01-01T00:01:00Z',
},
{
id: 'msg-4',
type: 'gemini',
content: [
{ text: 'Understood. I will only save the durable preference.' },
],
timestamp: '2026-01-01T00:01:05Z',
},
],
prompt:
'Please save any persistent preferences or facts about me from our conversation to memory.',
assert: async (rig, result) => {
await rig.waitForToolCall('write_file').catch(() => {});
const writeCalls = rig
.readToolLogs()
.filter((log) =>
['write_file', 'replace'].includes(log.toolRequest.name),
);
expect(
writeCalls.length,
'Expected memory save flow to edit a markdown memory file',
).toBeGreaterThan(0);
await rig.run({
args: ['--list-sessions'],
approvalMode: 'yolo',
timeout: 120000,
});
const record = await waitForSessionScratchpad(
rig.homeDir!,
'memory-scratchpad-eval',
);
expect(
record?.memoryScratchpad,
'Expected the resumed session log to contain a memoryScratchpad after session summary generation',
).toBeDefined();
expect(record?.memoryScratchpad?.version).toBe(1);
expect(
record?.memoryScratchpad?.toolSequence?.some((toolName) =>
['write_file', 'replace'].includes(toolName),
),
'Expected memoryScratchpad.toolSequence to include the markdown editing tool used for memory persistence',
).toBe(true);
expect(
record?.memoryScratchpad?.touchedPaths?.length,
'Expected memoryScratchpad to capture at least one touched path',
).toBeGreaterThan(0);
expect(
record?.memoryScratchpad?.workflowSummary,
'Expected memoryScratchpad.workflowSummary to be populated',
).toMatch(/write_file|replace/i);
assertModelHasOutput(result);
},
});
const memoryRoutesUserProject =
'Agent routes personal-to-user project notes to user-project memory';
evalTest('USUALLY_PASSES', {
suiteName: 'default',
suiteType: 'behavioral',
name: memoryRoutesUserProject,
prompt: `Please remember my personal local dev setup for THIS project's Postgres database. This is private to my machine — do NOT commit it to the repo.
Connection details:
- Host: localhost
- Port: 6543 (non-standard, I run multiple Postgres instances)
- Database: myproj_dev
- User: sandy_local
- Password: read from the SANDY_PG_LOCAL_PASS env var in my shell
How I start it locally:
1. Run \`brew services start postgresql@15\` to bring the server up.
2. Run \`./scripts/seed-local-db.sh\` from the repo root to load my personal seed data.
3. Verify with \`psql -h localhost -p 6543 -U sandy_local myproj_dev -c '\\dt'\`.
Quirks to remember:
- The migrations runner sometimes hangs on my machine if I forget step 1; kill it with Ctrl+C and rerun.
- I keep an extra \`scratch\` schema for ad-hoc experiments — never reference it from project code.`,
assert: async (rig, result) => {
// With the Private Project Memory bullet surfaced in the prompt, a fact
// that is project-specific AND personal-to-the-user (must not be
// committed) should land in the private project memory folder under
// ~/.gemini/tmp/<hash>/memory/. The detailed note should be written to a
// sibling markdown file, with
// MEMORY.md updated as the index. It must NOT go to committed
// ./GEMINI.md or the global ~/.gemini/GEMINI.md.
await rig.waitForToolCall('write_file').catch(() => {});
const writeCalls = rig
.readToolLogs()
.filter((log) =>
['write_file', 'replace'].includes(log.toolRequest.name),
);
const wroteUserProjectDetail = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/tmp\/[^/]+\/memory\/(?!MEMORY\.md)[^"]+\.md/i.test(args) &&
/6543/.test(args)
);
});
expect(
wroteUserProjectDetail,
'Expected the personal-to-user project note to be written to a private project memory detail file (~/.gemini/tmp/<hash>/memory/*.md)',
).toBe(true);
const wroteUserProjectIndex = writeCalls.some((log) => {
const args = log.toolRequest.args;
return /\.gemini\/tmp\/[^/]+\/memory\/MEMORY\.md/i.test(args);
});
expect(
wroteUserProjectIndex,
'Expected the personal-to-user project note to update the private project memory index (~/.gemini/tmp/<hash>/memory/MEMORY.md)',
).toBe(true);
// Defensive: should NOT have written this private note to the
// committed project GEMINI.md or the global GEMINI.md.
const leakedToCommittedProject = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\/GEMINI\.md/i.test(args) &&
!/\.gemini\//i.test(args) &&
/6543/.test(args)
);
});
expect(
leakedToCommittedProject,
'Personal-to-user note must NOT be written to the committed project GEMINI.md',
).toBe(false);
const leakedToGlobal = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/GEMINI\.md/i.test(args) &&
!/tmp\/[^/]+\/memory/i.test(args) &&
/6543/.test(args)
);
});
expect(
leakedToGlobal,
'Personal-to-user project note must NOT be written to the global ~/.gemini/GEMINI.md',
).toBe(false);
assertModelHasOutput(result);
},
});
const memoryRoutesCrossProjectToGlobal =
'Agent routes cross-project personal preferences to ~/.gemini/GEMINI.md';
evalTest('USUALLY_PASSES', {
suiteName: 'default',
suiteType: 'behavioral',
name: memoryRoutesCrossProjectToGlobal,
prompt:
'Please remember this about me in general: across all my projects I always prefer Prettier with single quotes and trailing commas, and I always prefer tabs over spaces for indentation. These are my personal coding-style defaults that follow me into every workspace.',
assert: async (rig, result) => {
// With the Global Personal Memory tier surfaced in the prompt, a fact
// that explicitly applies to the user "across all my projects" / "in
// every workspace" must land in the global ~/.gemini/GEMINI.md (the
// cross-project tier). It must
// NOT be mirrored into a committed project-root ./GEMINI.md (that
// tier is for team-shared conventions) or into the per-project
// private memory folder (that tier is for project-specific personal
// notes). Each fact lives in exactly one tier across all four tiers.
await rig.waitForToolCall('write_file').catch(() => {});
const writeCalls = rig
.readToolLogs()
.filter((log) =>
['write_file', 'replace'].includes(log.toolRequest.name),
);
const wroteToGlobal = (factPattern: RegExp) =>
writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/GEMINI\.md/i.test(args) &&
!/tmp\/[^/]+\/memory/i.test(args) &&
factPattern.test(args)
);
});
expect(
wroteToGlobal(/Prettier/i),
'Expected the cross-project Prettier preference to be written to the global personal memory file (~/.gemini/GEMINI.md)',
).toBe(true);
expect(
wroteToGlobal(/tabs/i),
'Expected the cross-project "tabs over spaces" preference to be written to the global personal memory file (~/.gemini/GEMINI.md)',
).toBe(true);
const leakedToCommittedProject = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/GEMINI\.md/i.test(args) &&
!/\.gemini\//i.test(args) &&
(/Prettier/i.test(args) || /tabs/i.test(args))
);
});
expect(
leakedToCommittedProject,
'Cross-project personal preferences must NOT be mirrored into a committed project ./GEMINI.md (that tier is for team-shared conventions only)',
).toBe(false);
const leakedToPrivateProject = writeCalls.some((log) => {
const args = log.toolRequest.args;
return (
/\.gemini\/tmp\/[^/]+\/memory\//i.test(args) &&
(/Prettier/i.test(args) || /tabs/i.test(args))
);
});
expect(
leakedToPrivateProject,
'Cross-project personal preferences must NOT be mirrored into the private project memory folder (that tier is for project-specific personal notes only)',
).toBe(false);
assertModelHasOutput(result);
},
});
});