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Improve compaction hooks: add signal, no timeout, SessionManager cleanup, docs

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Mario Zechner 2025-12-24 13:54:05 +01:00
parent a2664ba38a
commit 705ba5d4f2
19 changed files with 1236 additions and 207 deletions
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20
packages/coding-agent/test/compaction.test.ts
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@ -14,9 +14,9 @@ import {
shouldCompact,
} from "../src/core/compaction.js";
import {
buildSessionContext,
type CompactionEntry,
createSummaryMessage,
loadSessionFromEntries,
parseSessionEntries,
type SessionEntry,
type SessionMessageEntry,
@ -226,7 +226,7 @@ describe("createSummaryMessage", () => {
});
});
describe("loadSessionFromEntries", () => {
describe("buildSessionContext", () => {
it("should load all messages when no compaction", () => {
const entries: SessionEntry[] = [
{
@ -241,7 +241,7 @@ describe("loadSessionFromEntries", () => {
createMessageEntry(createAssistantMessage("b")),
];
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
expect(loaded.messages.length).toBe(4);
expect(loaded.thinkingLevel).toBe("off");
expect(loaded.model).toEqual({ provider: "anthropic", modelId: "claude-sonnet-4-5" });
@ -265,7 +265,7 @@ describe("loadSessionFromEntries", () => {
createMessageEntry(createAssistantMessage("c")),
];
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
// summary + kept (u2,a2 from idx 3-4) + after (u3,a3 from idx 6-7) = 5
expect(loaded.messages.length).toBe(5);
expect(loaded.messages[0].role).toBe("user");
@ -293,7 +293,7 @@ describe("loadSessionFromEntries", () => {
createMessageEntry(createAssistantMessage("d")),
];
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
// summary + kept from idx 6 (u3,c) + after (u4,d) = 5
expect(loaded.messages.length).toBe(5);
expect((loaded.messages[0] as any).content).toContain("Second summary");
@ -316,7 +316,7 @@ describe("loadSessionFromEntries", () => {
createCompactionEntry("Second summary", 0), // index 0 is before compaction1, should still work
];
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
// Keeps from index 0, but compaction entries are skipped, so u1,a1,u2,b = 4 + summary = 5
// Actually index 0 is session header, so messages are u1,a1,u2,b
expect(loaded.messages.length).toBe(5); // summary + 4 messages
@ -336,7 +336,7 @@ describe("loadSessionFromEntries", () => {
{ type: "thinking_level_change", timestamp: "", thinkingLevel: "high" },
];
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
// model_change is later overwritten by assistant message's model info
expect(loaded.model).toEqual({ provider: "anthropic", modelId: "claude-sonnet-4-5" });
expect(loaded.thinkingLevel).toBe("high");
@ -368,7 +368,7 @@ describe("Large session fixture", () => {
it("should load session correctly", () => {
const entries = loadLargeSessionEntries();
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
expect(loaded.messages.length).toBeGreaterThan(100);
expect(loaded.model).not.toBeNull();
@ -405,7 +405,7 @@ describe.skipIf(!process.env.ANTHROPIC_OAUTH_TOKEN)("LLM summarization", () => {
it("should produce valid session after compaction", async () => {
const entries = loadLargeSessionEntries();
const loaded = loadSessionFromEntries(entries);
const loaded = buildSessionContext(entries);
const model = getModel("anthropic", "claude-sonnet-4-5")!;
const compactionEvent = await compact(
@ -417,7 +417,7 @@ describe.skipIf(!process.env.ANTHROPIC_OAUTH_TOKEN)("LLM summarization", () => {
// Simulate appending compaction to entries
const newEntries = [...entries, compactionEvent];
const reloaded = loadSessionFromEntries(newEntries);
const reloaded = buildSessionContext(newEntries);
// Should have summary + kept messages
expect(reloaded.messages.length).toBeLessThan(loaded.messages.length);