feat(observer): parser v2 — environment, task_size, prompt_signal extractors

tools/observer-transcript-parser.test.mjs

@@ -1,5 +1,10 @@
 import { describe, it, expect } from 'vitest';
-import { parseTranscript } from './observer-transcript-parser.mjs';
+import {
+  parseTranscript,
+  extractEnvironment,
+  extractTaskSize,
+  classifyPromptSignal,
+} from './observer-transcript-parser.mjs';
 
 // Build a JSONL transcript string from entry objects.
 function jsonl(entries) {
@@ -215,3 +220,88 @@ describe('parseTranscript', () => {
     }
   });
 });
+
+describe('extractEnvironment', () => {
+  it('reads economy_level from the ECONOMY MODE marker', () => {
+    const entries = [
+      userPrompt('=== ECONOMY MODE: 0% (пользователь указал явно) ===\nfix it', '2026-05-19T10:00:00Z'),
+    ];
+    expect(extractEnvironment(entries, 0).economy_level).toBe(0);
+  });
+
+  it('economy_level is null when no marker present', () => {
+    const entries = [userPrompt('just do it', '2026-05-19T10:00:00Z')];
+    expect(extractEnvironment(entries, 0).economy_level).toBeNull();
+  });
+
+  it('reads model from an assistant message', () => {
+    const entries = [
+      userPrompt('go', '2026-05-19T10:00:00Z'),
+      { type: 'assistant', message: { role: 'assistant', model: 'claude-opus-4-7', content: [] }, timestamp: '2026-05-19T10:01:00Z', sessionId: 's1' },
+    ];
+    expect(extractEnvironment(entries, 0).model).toBe('claude-opus-4-7');
+  });
+
+  it('post_compaction is true when an isCompactSummary entry precedes the turn', () => {
+    const entries = [
+      { type: 'user', isCompactSummary: true, message: { role: 'user', content: 'summary' }, timestamp: '2026-05-19T09:00:00Z' },
+      userPrompt('the real turn', '2026-05-19T10:00:00Z'),
+    ];
+    expect(extractEnvironment(entries, 1).post_compaction).toBe(true);
+  });
+
+  it('post_compaction is false with no compaction marker', () => {
+    const entries = [userPrompt('turn one', '2026-05-19T09:00:00Z'), userPrompt('turn two', '2026-05-19T10:00:00Z')];
+    expect(extractEnvironment(entries, 1).post_compaction).toBe(false);
+  });
+
+  it('session_turn counts real user prompts up to and including the turn start', () => {
+    const entries = [
+      userPrompt('one', '2026-05-19T09:00:00Z'),
+      userPrompt('two', '2026-05-19T09:30:00Z'),
+      userPrompt('three', '2026-05-19T10:00:00Z'),
+    ];
+    expect(extractEnvironment(entries, 2).session_turn).toBe(3);
+  });
+});
+
+describe('extractTaskSize', () => {
+  it('counts tool calls and unique file paths', () => {
+    const turn = [
+      assistantTurn(
+        [
+          { type: 'tool_use', id: 't1', name: 'Read', input: { file_path: '/a.js' } },
+          { type: 'tool_use', id: 't2', name: 'Edit', input: { file_path: '/a.js' } },
+          { type: 'tool_use', id: 't3', name: 'Write', input: { file_path: '/b.js' } },
+          { type: 'tool_use', id: 't4', name: 'Bash', input: {} },
+        ],
+        '2026-05-19T10:01:00Z'
+      ),
+    ];
+    const size = extractTaskSize(turn);
+    expect(size.tool_calls).toBe(4);
+    expect(size.files_touched).toBe(2);
+    expect(size.files.sort()).toEqual(['/a.js', '/b.js']);
+  });
+
+  it('returns zeros for an empty turn', () => {
+    expect(extractTaskSize([])).toEqual({ tool_calls: 0, files_touched: 0, files: [] });
+  });
+});
+
+describe('classifyPromptSignal', () => {
+  it('detects corrections', () => {
+    expect(classifyPromptSignal('не то, переделай')).toBe('correction');
+    expect(classifyPromptSignal('почему ты это сделал')).toBe('correction');
+  });
+  it('detects approvals', () => {
+    expect(classifyPromptSignal('ок, спасибо')).toBe('approval');
+    expect(classifyPromptSignal('готово, дальше')).toBe('approval');
+  });
+  it('detects a new task', () => {
+    expect(classifyPromptSignal('добавь новую фичу экспорта в CSV')).toBe('new_task');
+  });
+  it('falls back to neutral', () => {
+    expect(classifyPromptSignal('hmm')).toBe('neutral');
+  });
+});