remem-ai 0.6.62

Local-first coding agent memory for Claude Code and OpenAI Codex
Documentation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
use anyhow::{ensure, Result};
use rusqlite::{params, Connection, OptionalExtension};
use serde::Serialize;

use crate::db::ExtractionTaskKind;

#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
pub struct ExtractionReplayRange {
    pub id: i64,
    pub source_task_id: i64,
    pub replay_task_id: Option<i64>,
    pub task_kind: String,
    pub project: String,
    pub session_id: Option<String>,
    pub from_event_id: i64,
    pub to_event_id: i64,
    pub status: String,
    pub attempts: i64,
    pub updated_at_epoch: i64,
    pub last_error: Option<String>,
}

#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
pub struct ExtractionReplayTaskEvidence {
    pub id: i64,
    pub status: String,
    pub attempts: i64,
    pub last_error: Option<String>,
}

#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
pub struct ExtractionReplayRangeEvidence {
    pub range: ExtractionReplayRange,
    pub replay_task: Option<ExtractionReplayTaskEvidence>,
}

pub fn list_extraction_replay_ranges(
    conn: &Connection,
    project: Option<&str>,
    limit: i64,
) -> Result<Vec<ExtractionReplayRange>> {
    let mut stmt = conn.prepare(
        "SELECT r.id, r.source_task_id, r.replay_task_id, r.task_kind, p.project_path,
                s.session_id, r.from_event_id, r.to_event_id, r.status, r.attempts,
                r.updated_at_epoch, r.last_error
         FROM extraction_replay_ranges r
         JOIN projects p ON p.id = r.project_id
         LEFT JOIN sessions s ON s.id = r.session_row_id
         WHERE r.status IN ('pending', 'failed', 'requeued', 'quarantined')
           AND (?1 IS NULL OR p.project_path = ?1)
         ORDER BY r.updated_at_epoch DESC, r.id DESC
         LIMIT ?2",
    )?;
    let rows = stmt.query_map(params![project, limit.max(1)], |row| {
        Ok(ExtractionReplayRange {
            id: row.get(0)?,
            source_task_id: row.get(1)?,
            replay_task_id: row.get(2)?,
            task_kind: row.get(3)?,
            project: row.get(4)?,
            session_id: row.get(5)?,
            from_event_id: row.get(6)?,
            to_event_id: row.get(7)?,
            status: row.get(8)?,
            attempts: row.get(9)?,
            updated_at_epoch: row.get(10)?,
            last_error: row.get(11)?,
        })
    })?;
    crate::db::query::collect_rows(rows)
}

pub fn get_extraction_replay_range_evidence(
    conn: &Connection,
    range_id: i64,
) -> Result<ExtractionReplayRangeEvidence> {
    ensure!(range_id > 0, "extraction replay range id must be positive");
    conn.query_row(
        "SELECT r.id, r.source_task_id, r.replay_task_id, r.task_kind, p.project_path,
                s.session_id, r.from_event_id, r.to_event_id, r.status, r.attempts,
                r.updated_at_epoch, r.last_error,
                t.id, t.status, t.attempts, t.last_error
         FROM extraction_replay_ranges r
         JOIN projects p ON p.id = r.project_id
         LEFT JOIN sessions s ON s.id = r.session_row_id
         LEFT JOIN extraction_tasks t ON t.id = r.replay_task_id
         WHERE r.id = ?1",
        params![range_id],
        |row| {
            let replay_task_id = row.get::<_, Option<i64>>(12)?;
            Ok(ExtractionReplayRangeEvidence {
                range: ExtractionReplayRange {
                    id: row.get(0)?,
                    source_task_id: row.get(1)?,
                    replay_task_id: row.get(2)?,
                    task_kind: row.get(3)?,
                    project: row.get(4)?,
                    session_id: row.get(5)?,
                    from_event_id: row.get(6)?,
                    to_event_id: row.get(7)?,
                    status: row.get(8)?,
                    attempts: row.get(9)?,
                    updated_at_epoch: row.get(10)?,
                    last_error: row.get(11)?,
                },
                replay_task: if let Some(id) = replay_task_id {
                    Some(ExtractionReplayTaskEvidence {
                        id,
                        status: row.get(13)?,
                        attempts: row.get(14)?,
                        last_error: row.get(15)?,
                    })
                } else {
                    None
                },
            })
        },
    )
    .optional()?
    .ok_or_else(|| anyhow::anyhow!("extraction replay range {range_id} does not exist"))
}

pub fn count_retryable_extraction_replay_ranges(
    conn: &Connection,
    project: Option<&str>,
    limit: i64,
) -> Result<i64> {
    conn.query_row(
        "SELECT COUNT(*)
         FROM (
             SELECT r.id
             FROM extraction_replay_ranges r
             JOIN projects p ON p.id = r.project_id
             WHERE r.status IN ('pending', 'failed')
               AND r.archived_at_epoch IS NULL
               AND NOT EXISTS (
                 SELECT 1
                 FROM extraction_tasks t
                 WHERE t.replay_range_id = r.id
                   AND t.status IN ('pending', 'processing')
               )
               AND (?1 IS NULL OR p.project_path = ?1)
             ORDER BY r.updated_at_epoch ASC, r.id ASC
             LIMIT ?2
         )",
        params![project, limit.max(1)],
        |row| row.get(0),
    )
    .map_err(Into::into)
}

fn query_retryable_replay_range_ids(
    conn: &Connection,
    project: Option<&str>,
    range_id: Option<i64>,
    acknowledge_quarantine: bool,
    include_archived: bool,
    limit: i64,
) -> Result<Vec<i64>> {
    let mut stmt = conn.prepare(
        "SELECT r.id
         FROM extraction_replay_ranges r
         JOIN projects p ON p.id = r.project_id
         WHERE (r.status IN ('pending', 'failed')
                OR (?3 = 1 AND r.status = 'quarantined'))
           AND (?4 = 1 OR r.archived_at_epoch IS NULL)
           AND NOT EXISTS (
             SELECT 1
             FROM extraction_tasks t
             WHERE t.replay_range_id = r.id
               AND t.status IN ('pending', 'processing')
           )
           AND (?1 IS NULL OR p.project_path = ?1)
           AND (?2 IS NULL OR r.id = ?2)
         ORDER BY r.updated_at_epoch ASC, r.id ASC
         LIMIT ?5",
    )?;
    let rows = stmt.query_map(
        params![
            project,
            range_id,
            acknowledge_quarantine,
            include_archived,
            limit.max(1)
        ],
        |row| row.get::<_, i64>(0),
    )?;
    crate::db::query::collect_rows(rows)
}

pub fn ensure_extraction_replay_range_retryable(
    conn: &Connection,
    range_id: i64,
    acknowledge_quarantine: bool,
    include_archived: bool,
) -> Result<()> {
    ensure!(range_id > 0, "extraction replay range id must be positive");
    let range_ids = query_retryable_replay_range_ids(
        conn,
        None,
        Some(range_id),
        acknowledge_quarantine,
        include_archived,
        1,
    )?;
    ensure!(
        range_ids == [range_id],
        "extraction replay range {range_id} is not retryable"
    );
    Ok(())
}

pub fn retry_extraction_replay_range(
    conn: &Connection,
    range_id: i64,
    acknowledge_quarantine: bool,
) -> Result<()> {
    let tx = conn.unchecked_transaction()?;
    ensure_extraction_replay_range_retryable(&tx, range_id, acknowledge_quarantine, false)?;
    enqueue_replay_extraction_task(&tx, range_id, acknowledge_quarantine)?;
    tx.commit()?;
    Ok(())
}

pub(crate) fn retry_and_claim_extraction_replay_range(
    conn: &mut Connection,
    range_id: i64,
    acknowledge_quarantine: bool,
    include_archived: bool,
    lease_owner: &str,
    lease_secs: i64,
) -> Result<crate::db::ExtractionTask> {
    ensure!(
        crate::db::is_exact_replay_worker_owner(lease_owner),
        "exact replay recovery requires an exact replay worker owner"
    );
    let tx = conn.transaction()?;
    ensure_extraction_replay_range_retryable(
        &tx,
        range_id,
        acknowledge_quarantine,
        include_archived,
    )?;
    let task_id = enqueue_replay_extraction_task(&tx, range_id, acknowledge_quarantine)?;
    let task = crate::db::claim_extraction_task_by_id_in_transaction(
        &tx,
        task_id,
        lease_owner,
        lease_secs,
    )?
    .ok_or_else(|| {
        anyhow::anyhow!(
            "extraction replay task {task_id} is not pending and retry-ready for exact claim"
        )
    })?;
    tx.commit()?;
    Ok(task)
}

pub fn quarantine_extraction_replay_range(conn: &Connection, range_id: i64) -> Result<()> {
    let tx = conn.unchecked_transaction()?;
    ensure_extraction_replay_range_retryable(&tx, range_id, false, false)?;
    let now = chrono::Utc::now().timestamp();
    tx.execute(
        "UPDATE extraction_replay_ranges
         SET status = 'quarantined', updated_at_epoch = ?1
         WHERE id = ?2",
        params![now, range_id],
    )?;
    clear_terminal_failures_for_quiesced_range(&tx, range_id, now)?;
    tx.commit()?;
    Ok(())
}

pub fn retry_extraction_replay_ranges(
    conn: &Connection,
    project: Option<&str>,
    limit: i64,
) -> Result<usize> {
    let tx = conn.unchecked_transaction()?;
    let range_ids = query_retryable_replay_range_ids(&tx, project, None, false, false, limit)?;
    for range_id in &range_ids {
        enqueue_replay_extraction_task(&tx, *range_id, false)?;
    }
    tx.commit()?;
    Ok(range_ids.len())
}

pub fn quarantine_extraction_replay_ranges(
    conn: &Connection,
    project: Option<&str>,
    limit: i64,
) -> Result<usize> {
    let tx = conn.unchecked_transaction()?;
    let range_ids = query_retryable_replay_range_ids(&tx, project, None, false, false, limit)?;
    let now = chrono::Utc::now().timestamp();
    for range_id in &range_ids {
        tx.execute(
            "UPDATE extraction_replay_ranges
             SET status = 'quarantined', updated_at_epoch = ?1
             WHERE id = ?2",
            params![now, range_id],
        )?;
        clear_terminal_failures_for_quiesced_range(&tx, *range_id, now)?;
    }
    tx.commit()?;
    Ok(range_ids.len())
}

pub(crate) fn enqueue_replay_extraction_task(
    conn: &Connection,
    range_id: i64,
    acknowledge_quarantine: bool,
) -> Result<i64> {
    let (task_kind, host_id, workspace_id, project_id, session_row_id, from_event_id, to_event_id) =
        conn.query_row(
            "SELECT task_kind, host_id, workspace_id, project_id, session_row_id,
                    from_event_id, to_event_id
             FROM extraction_replay_ranges
             WHERE id = ?1
               AND (status IN ('pending', 'failed')
                    OR (?2 = 1 AND status = 'quarantined'))",
            params![range_id, acknowledge_quarantine],
            |row| {
                Ok((
                    row.get::<_, String>(0)?,
                    row.get::<_, i64>(1)?,
                    row.get::<_, i64>(2)?,
                    row.get::<_, i64>(3)?,
                    row.get::<_, Option<i64>>(4)?,
                    row.get::<_, i64>(5)?,
                    row.get::<_, i64>(6)?,
                ))
            },
        )?;
    let session_row_id = session_row_id.ok_or_else(|| {
        anyhow::anyhow!("extraction replay range {range_id} is missing session_row_id")
    })?;
    let task_kind_value = ExtractionTaskKind::from_db(&task_kind)?;
    let now = chrono::Utc::now().timestamp();
    let idempotency_key =
        format!("{host_id}:{project_id}:{session_row_id}:{task_kind}:replay-range:{range_id}");
    conn.execute(
        "INSERT INTO extraction_tasks
         (task_kind, host_id, workspace_id, project_id, session_row_id, priority, status,
          idempotency_key, cursor_event_id, high_watermark_event_id, attempts,
          next_retry_epoch, lease_owner, lease_expires_epoch, last_error, created_at_epoch,
          updated_at_epoch, replay_range_id)
         VALUES (?1, ?2, ?3, ?4, ?5, ?6, 'pending', ?7, ?8, ?9, 0, NULL, NULL, NULL, NULL,
                 ?10, ?10, ?11)
         ON CONFLICT(idempotency_key) DO UPDATE SET
             status = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN 'pending'
                 ELSE extraction_tasks.status
             END,
             cursor_event_id = excluded.cursor_event_id,
             high_watermark_event_id = excluded.high_watermark_event_id,
             attempts = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN 0
                 ELSE extraction_tasks.attempts
             END,
             next_retry_epoch = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN NULL
                 ELSE extraction_tasks.next_retry_epoch
             END,
             last_error = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN NULL
                 ELSE extraction_tasks.last_error
             END,
             failure_class = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN NULL
                 ELSE extraction_tasks.failure_class
             END,
             failed_at_epoch = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN NULL
                 ELSE extraction_tasks.failed_at_epoch
             END,
             archived_at_epoch = CASE
                 WHEN extraction_tasks.status IN ('done', 'failed') THEN NULL
                 ELSE extraction_tasks.archived_at_epoch
             END,
             replay_range_id = excluded.replay_range_id,
             updated_at_epoch = excluded.updated_at_epoch",
        params![
            task_kind,
            host_id,
            workspace_id,
            project_id,
            session_row_id,
            task_kind_value.priority(),
            idempotency_key,
            from_event_id - 1,
            to_event_id,
            now,
            range_id
        ],
    )?;
    let replay_task_id: i64 = conn.query_row(
        "SELECT id FROM extraction_tasks WHERE idempotency_key = ?1",
        params![idempotency_key],
        |row| row.get(0),
    )?;
    conn.execute(
        "UPDATE extraction_replay_ranges
         SET status = 'requeued',
             replay_task_id = ?1,
             attempts = attempts + 1,
             failure_class = NULL,
             failed_at_epoch = NULL,
             archived_at_epoch = NULL,
             updated_at_epoch = ?2
         WHERE id = ?3",
        params![replay_task_id, now, range_id],
    )?;
    Ok(replay_task_id)
}

pub(crate) fn archive_exact_replay_range_after_task_failure(
    conn: &Connection,
    range_id: i64,
    replay_task_id: i64,
    error: &str,
    now: i64,
) -> Result<()> {
    let updated = conn.execute(
        "UPDATE extraction_replay_ranges
         SET status = 'quarantined',
             replay_task_id = ?1,
             last_error = ?2,
             failure_class = ?3,
             failed_at_epoch = COALESCE(failed_at_epoch, ?4),
             archived_at_epoch = ?4,
             updated_at_epoch = ?4
         WHERE id = ?5
           AND EXISTS (
             SELECT 1
             FROM extraction_tasks t
             WHERE t.id = ?1 AND t.replay_range_id = extraction_replay_ranges.id
           )",
        params![
            replay_task_id,
            crate::db::truncate_str(error, 2000),
            crate::db::classify_failure(error).as_str(),
            now,
            range_id
        ],
    )?;
    ensure!(
        updated == 1,
        "exact replay range {range_id} is not linked to replay task {replay_task_id}"
    );
    Ok(())
}

#[allow(clippy::too_many_arguments)]
pub(crate) fn record_exhausted_replay_range(
    conn: &Connection,
    source_task_id: i64,
    task_kind: &str,
    host_id: i64,
    workspace_id: i64,
    project_id: i64,
    session_row_id: Option<i64>,
    from_event_id: i64,
    to_event_id: i64,
    _attempts: i64,
    err: &str,
    now: i64,
) -> Result<i64> {
    conn.execute(
        "INSERT INTO extraction_replay_ranges
         (source_task_id, task_kind, host_id, workspace_id, project_id, session_row_id,
          from_event_id, to_event_id, status, attempts, last_error, failure_class,
          failed_at_epoch, archived_at_epoch, created_at_epoch, updated_at_epoch)
         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, 'pending', 0, ?9, ?10, ?11, NULL, ?11, ?11)
         ON CONFLICT(source_task_id, from_event_id, to_event_id) DO UPDATE SET
             status = CASE
                 WHEN extraction_replay_ranges.status = 'quarantined' THEN 'quarantined'
                 ELSE 'pending'
             END,
             last_error = excluded.last_error,
             failure_class = excluded.failure_class,
             failed_at_epoch = COALESCE(extraction_replay_ranges.failed_at_epoch, excluded.failed_at_epoch),
             archived_at_epoch = NULL,
             updated_at_epoch = excluded.updated_at_epoch",
        params![
            source_task_id,
            task_kind,
            host_id,
            workspace_id,
            project_id,
            session_row_id,
            from_event_id,
            to_event_id,
            crate::db::truncate_str(err, 2000),
            crate::db::classify_failure(err).as_str(),
            now
        ],
    )?;
    conn.query_row(
        "SELECT id
         FROM extraction_replay_ranges
         WHERE source_task_id = ?1 AND from_event_id = ?2 AND to_event_id = ?3",
        params![source_task_id, from_event_id, to_event_id],
        |row| row.get(0),
    )
    .map_err(Into::into)
}

pub(crate) fn mark_replay_range_replayed_if_done(
    conn: &Connection,
    task_id: i64,
    now: i64,
) -> Result<()> {
    let updated = conn.execute(
        "UPDATE extraction_replay_ranges
         SET status = 'replayed',
             replay_task_id = COALESCE(replay_task_id, ?1),
             last_error = NULL,
             failure_class = NULL,
             failed_at_epoch = NULL,
             archived_at_epoch = NULL,
             updated_at_epoch = ?2
         WHERE id = (
             SELECT replay_range_id FROM extraction_tasks
             WHERE id = ?1 AND status = 'done' AND replay_range_id IS NOT NULL
         )
           AND status != 'quarantined'
           AND NOT EXISTS (
             SELECT 1 FROM extraction_tasks t
             WHERE t.replay_range_id = extraction_replay_ranges.id
               AND t.status != 'done'
         )",
        params![task_id, now],
    )?;
    if updated > 0 {
        let range_id = conn.query_row(
            "SELECT replay_range_id
             FROM extraction_tasks
             WHERE id = ?1",
            params![task_id],
            |row| row.get::<_, i64>(0),
        )?;
        clear_terminal_failures_for_quiesced_range(conn, range_id, now)?;
    }
    Ok(())
}

fn clear_terminal_failures_for_quiesced_range(
    conn: &Connection,
    range_id: i64,
    now: i64,
) -> Result<()> {
    conn.execute(
        "UPDATE extraction_tasks
         SET status = 'done',
             attempts = 0,
             lease_owner = NULL,
             lease_expires_epoch = NULL,
             next_retry_epoch = NULL,
             last_error = NULL,
             failure_class = NULL,
             failed_at_epoch = NULL,
             archived_at_epoch = NULL,
             updated_at_epoch = ?2
         WHERE replay_range_id = ?1
           AND status = 'failed'",
        params![range_id, now],
    )?;
    conn.execute(
        "UPDATE extraction_tasks
         SET status = 'done',
             attempts = 0,
             lease_owner = NULL,
             lease_expires_epoch = NULL,
             next_retry_epoch = NULL,
             last_error = NULL,
             failure_class = NULL,
             failed_at_epoch = NULL,
             archived_at_epoch = NULL,
             updated_at_epoch = ?2
         WHERE id = (
             SELECT source_task_id
             FROM extraction_replay_ranges
             WHERE id = ?1
         )
           AND status = 'failed'
           AND NOT EXISTS (
             SELECT 1
             FROM extraction_replay_ranges r
             WHERE r.source_task_id = extraction_tasks.id
               AND r.status NOT IN ('replayed', 'quarantined')
         )",
        params![range_id, now],
    )?;
    Ok(())
}

pub(crate) fn mark_replay_range_failed(
    conn: &Connection,
    task_id: i64,
    now: i64,
    err: &str,
) -> Result<()> {
    conn.execute(
        "UPDATE extraction_replay_ranges
         SET status = 'failed',
             replay_task_id = COALESCE(replay_task_id, ?1),
             attempts = COALESCE((SELECT attempts FROM extraction_tasks WHERE id = ?1), attempts),
             last_error = ?2,
             failure_class = ?3,
             failed_at_epoch = COALESCE(failed_at_epoch, ?4),
             archived_at_epoch = NULL,
             updated_at_epoch = ?4
         WHERE id = (
             SELECT replay_range_id FROM extraction_tasks
             WHERE id = ?1 AND replay_range_id IS NOT NULL
         )",
        params![
            task_id,
            crate::db::truncate_str(err, 2000),
            crate::db::classify_failure(err).as_str(),
            now
        ],
    )?;
    Ok(())
}