# Phase-6 Anti-Silent Lessons Tuning (Closed-loop)

## Goal
Tune anti-silent ACK template selection using evidence from gateway events (`reason + chat_type + template_id + user_signal`) without unsafe auto-mutation.

## Safety Invariants
- No automatic global policy rewrite.
- Gateway applies tuning only when `ANTI_SILENT_TUNING_ENABLED=true`.
- Learner emits tuning lessons only with thresholds (`MIN_EVIDENCE`, `MIN_SCORE`).
- Lessons have TTL (`expires_at`) for rollback-by-expiry.

## Components
- `services/experience-learner/main.py`
  - emits `lesson_type=anti_silent_tuning`
  - computes score: `1 - (w_retry*retry_rate + w_negative*negative_rate + w_suppressed*suppressed_rate)`
- `gateway-bot/http_api.py`
  - applies tuning in anti-silent template resolver under feature flag
  - fail-open on DB/lookup errors
- `gateway-bot/gateway_experience_bus.py`
  - DB lookup of active tuning lesson by trigger (`reason=<...>;chat_type=<...>`)

## Environment

### Learner
- `ANTI_SILENT_TUNING_ENABLED=true`
- `ANTI_SILENT_TUNING_WINDOW_DAYS=7`
- `ANTI_SILENT_TUNING_MIN_EVIDENCE=20`
- `ANTI_SILENT_TUNING_MIN_SCORE=0.75`
- `ANTI_SILENT_TUNING_WEIGHT_RETRY=0.6`
- `ANTI_SILENT_TUNING_WEIGHT_NEGATIVE=0.3`
- `ANTI_SILENT_TUNING_WEIGHT_SUPPRESSED=0.1`
- `ANTI_SILENT_TUNING_TTL_DAYS=7`

### Gateway
- `ANTI_SILENT_TUNING_ENABLED=false` (default; turn on only after smoke)
- `ANTI_SILENT_TUNING_DB_TIMEOUT_MS=40`
- `ANTI_SILENT_TUNING_CACHE_TTL_SECONDS=60`

## Deploy
```bash
cd /opt/microdao-daarion
docker compose -f docker-compose.node1.yml up -d --no-deps --build --force-recreate experience-learner gateway
```

## Single-Command Smoke (Phase-6.1)
```bash
make phase6-smoke
```

The command runs:
1. deterministic seed events
2. learner lesson generation assertion
3. gateway apply assertion (flag ON)
4. gateway fallback assertion (flag OFF)
5. seed cleanup (events + lessons)

Use `PHASE6_CLEANUP=0 make phase6-smoke` to keep artifacts for debugging.

## CI Integration
- Workflow: `.github/workflows/phase6-smoke.yml`
- Modes:
  - `workflow_dispatch` (manual)
  - `workflow_run` after successful deploy workflow
- Operations guide: `docs/ops/ci_smoke.md`

## Fixed Smoke (Deterministic)

### 1) Temporary smoke thresholds
Use low thresholds only for smoke:
- `ANTI_SILENT_TUNING_MIN_EVIDENCE=3`
- `ANTI_SILENT_TUNING_MIN_SCORE=0.5`
- `ANTI_SILENT_TUNING_WINDOW_DAYS=1`

### 2) Seed synthetic gateway events
```bash
export PG_CONTAINER='dagi-postgres'

docker exec "$PG_CONTAINER" psql -U daarion -d daarion_memory -c "
WITH seed AS (
  SELECT
    (
      substr(md5(random()::text || clock_timestamp()::text), 1, 8) || '-' ||
      substr(md5(random()::text || clock_timestamp()::text), 9, 4) || '-' ||
      substr(md5(random()::text || clock_timestamp()::text), 13, 4) || '-' ||
      substr(md5(random()::text || clock_timestamp()::text), 17, 4) || '-' ||
      substr(md5(random()::text || clock_timestamp()::text), 21, 12)
    )::uuid AS event_id,
    now() - (g * interval '1 minute') AS ts,
    CASE WHEN g <= 3 THEN 'UNSUPPORTED_INPUT' ELSE 'SILENT_POLICY' END AS template_id,
    CASE WHEN g <= 3 THEN 'retry' ELSE 'none' END AS user_signal
  FROM generate_series(1,6) g
)
INSERT INTO agent_experience_events (
  event_id, ts, node_id, source, agent_id, task_type, request_id,
  channel, inputs_hash, provider, model, profile, latency_ms,
  tokens_in, tokens_out, ok, error_class, error_msg_redacted,
  http_status, raw
)
SELECT
  event_id,
  ts,
  'NODA1',
  'gateway',
  'agromatrix',
  'webhook',
  'phase6-seed-' || event_id::text,
  'telegram',
  md5(event_id::text),
  'gateway',
  'gateway',
  NULL,
  25,
  NULL,
  NULL,
  true,
  NULL,
  NULL,
  200,
  jsonb_build_object(
    'event_id', event_id::text,
    'ts', to_char(ts, 'YYYY-MM-DD"T"HH24:MI:SS"Z"'),
    'source', 'gateway',
    'agent_id', 'agromatrix',
    'chat_type', 'group',
    'anti_silent_action', 'ACK_EMITTED',
    'anti_silent_template', template_id,
    'policy', jsonb_build_object('sowa_decision', 'SILENT', 'reason', 'unsupported_no_message'),
    'feedback', jsonb_build_object('user_signal', user_signal),
    'result', jsonb_build_object('ok', true, 'http_status', 200)
  )
FROM seed;
"
```

### 3) Trigger learner evaluation with one real event
```bash
export GATEWAY_WEBHOOK_URL='http://127.0.0.1:9300/agromatrix/telegram/webhook'

curl -sS -X POST "$GATEWAY_WEBHOOK_URL" \
  -H 'content-type: application/json' \
  -d @docs/ops/payloads/phase5_payload_group_unsupported_no_message.json
```

### 4) Verify tuning lesson exists
```bash
docker exec "$PG_CONTAINER" psql -U daarion -d daarion_memory -P pager=off -c "
SELECT ts,
       trigger,
       action,
       raw->>'lesson_type' AS lesson_type,
       raw->>'expires_at' AS expires_at,
       evidence
FROM agent_lessons
WHERE raw->>'lesson_type'='anti_silent_tuning'
ORDER BY ts DESC
LIMIT 5;
"
```
Expected: lesson with
- `trigger=reason=unsupported_no_message;chat_type=group`
- `action=prefer_template=SILENT_POLICY`

### 5) Enable gateway tuning and verify apply
```bash
# set ANTI_SILENT_TUNING_ENABLED=true for gateway and restart container
# then replay unsupported payload:

curl -sS -X POST "$GATEWAY_WEBHOOK_URL" \
  -H 'content-type: application/json' \
  -d @docs/ops/payloads/phase5_payload_group_unsupported_no_message.json

# verify latest gateway events

docker exec "$PG_CONTAINER" psql -U daarion -d daarion_memory -P pager=off -c "
SELECT ts,
       raw->'policy'->>'reason' AS reason,
       raw->>'chat_type' AS chat_type,
       raw->>'anti_silent_template' AS template_id,
       raw->>'anti_silent_tuning_applied' AS tuning_applied,
       raw->>'anti_silent_action' AS anti_action
FROM agent_experience_events
WHERE source='gateway'
  AND raw->'policy'->>'reason'='unsupported_no_message'
ORDER BY ts DESC
LIMIT 10;
"
```
Expected: newest rows have
- `template_id=SILENT_POLICY`
- `tuning_applied=true`

## PASS
- Tuning lesson created only when evidence/score thresholds pass.
- Gateway does not change template when feature flag is off.
- With feature flag on, gateway applies active non-expired tuning lesson.
- Expired lessons are ignored.

## FAIL
- Tuning lesson appears below evidence/score threshold.
- Gateway changes template while feature flag is off.
- Gateway applies expired lesson.
- Webhook path fails when tuning lookup fails (must stay fail-open).

## Manual Cleanup Query
```sql
DELETE FROM agent_lessons
WHERE raw->>'lesson_type'='anti_silent_tuning'
  AND raw->>'seed_test'='true';
```