LengoAI

G-0001 · Reduce failed payments by 20%

closed  cycle 2  · flag goal_0001_c2_gateway_retry

Rollout at 100% of users1%10%50%100%

Goal: reduce failed payments caused by gateway timeouts.

Goal metric: failure rate

proven
failure_rate: change with the flag on (always-valid interval)-30-20-10-0.00+10pts10%50%100%goalexpand at 1% (minute 11)expand at 10% (minute 16)expand at 50% (minute 29)proven at 100% (minute 34)minutes since rollout start (34)
always-valid interval estimate goal

With the flag on: -1.94 pts versus off (always-valid interval -2.77 pts to -1.10 pts), a relative change of -18.8%. Control rate 10.33%; 35512 events with the flag on, 61927 off. Method: msprt.

Guardrails

must not get worse
http_5xx_rate: change with the flag on (always-valid interval)-10-5.0+0.00+5.0+10pts10%50%100%kill lineexpand at 1% (minute 11)expand at 10% (minute 16)expand at 50% (minute 29)proven at 100% (minute 34)minutes since rollout start (34)
always-valid interval estimate kill line (tolerance)
http 5xx rate: ok within limits
p95 latency ms: ok treatment p95 within tolerance

Latest decision

#46 at 100% · · tick

What happened

55 events
  1. flow · core
    lengo-plan-build started (plan, attempt 1)
    session completed
  2. handoff · ai-lengo-plan-build-local
    strategist → builder: done accepted, citations 100% valid
    Plan: retry gateway timeouts behind a flag; watch 5xx and p95.
  3. state · core
    proposed → planned
    Strategist plan validated
  4. handoff · ai-lengo-plan-build-local
    builder → gatekeeper: done accepted
    Opened !1 with policy naive.
  5. state · core
    planned → built
    Builder opened !1
  6. flow · core
    lengo-gate started (gate, attempt 1)
    session completed
  7. handoff · ai-lengo-gate-local
    gatekeeper → launcher: pass accepted
    Gate verdict: pass. No blocking findings.
  8. state · core
    built → gate_passed
    Gatekeeper verdict: pass
  9. state · core
    gate_passed → staged
    deployed to staging (deployment 1008)
  10. flag · core
    flag on at 1% (applied)
    allow: all checks passed
  11. state · core
    staged → rollout_1
    flag goal_0001_gateway_retry on for 1% of users
  12. flow · core
    lengo-launch started (launch, attempt 1)
    session completed
  13. handoff · ai-lengo-launch-local
    launcher → analyst: done accepted, citations 100% valid
    Release notes posted; Core controls the flag.
  14. flag · core
    flag at 10% (applied)
    allow: all checks passed
  15. state · core
    rollout_1 → rollout_10
    flag expanded to 10%
  16. flow · core
    lengo-analyze started (analyze_11, attempt 1)
    session completed
  17. handoff · ai-lengo-analyze-local
    analyst → core: done accepted
    Expanded to 10%: guardrails clean, evidence growing.
  18. flag · core
    flag off (applied) time to kill 0 ms
    guardrail http_5xx_rate: http_5xx_rate worse than control by at least 0.0007 (tolerated 0.0003) at alpha 0.01
  19. state · core
    rollout_10 → killed
    guardrail http_5xx_rate: http_5xx_rate worse than control by at least 0.0007 (tolerated 0.0003) at alpha 0.01
  20. flow · core
    lengo-incident started (incident, attempt 1)
    session completed
  21. handoff · ai-lengo-incident-local
    commander → scribe: done accepted, citations 100% valid
    Incident opened; retries without back-off collided with in-flight attempts.
  22. flow · core
    lengo-scribe started (scribe, attempt 1)
    session completed
  23. handoff · ai-lengo-scribe-local
    scribe → core: done accepted, citations 100% valid
    Outcome report posted.
  24. state · core
    killed → reported
    Scribe posted the outcome report
  25. state · core
    reported → reopened
    allow: all checks passed
  26. flow · core
    lengo-plan-build started (plan, attempt 1)
    session completed
  27. handoff · ai-lengo-plan-build-local
    strategist → builder: done accepted, citations 100% valid
    Plan: retry gateway timeouts behind a flag; watch 5xx and p95.
  28. state · core
    reopened → planned
    Strategist plan validated
  29. handoff · ai-lengo-plan-build-local
    builder → gatekeeper: done accepted
    Opened !2 with policy backoff.
  30. state · core
    planned → built
    Builder opened !2
  31. flow · core
    lengo-gate started (gate, attempt 1)
    session completed
  32. handoff · ai-lengo-gate-local
    gatekeeper → launcher: pass accepted
    Gate verdict: pass. No blocking findings.
  33. state · core
    built → gate_passed
    Gatekeeper verdict: pass
  34. state · core
    gate_passed → staged
    deployed to staging (deployment 1026)
  35. flag · core
    flag on at 1% (applied)
    allow: all checks passed
  36. state · core
    staged → rollout_1
    flag goal_0001_c2_gateway_retry on for 1% of users
  37. flow · core
    lengo-launch started (launch, attempt 1)
    session completed
  38. handoff · ai-lengo-launch-local
    launcher → analyst: done accepted, citations 100% valid
    Release notes posted; Core controls the flag.
  39. flag · core
    flag at 10% (applied)
    allow: all checks passed
  40. state · core
    rollout_1 → rollout_10
    flag expanded to 10%
  41. flow · core
    lengo-analyze started (analyze_23, attempt 1)
    session completed
  42. handoff · ai-lengo-analyze-local
    analyst → core: done accepted
    Expanded to 10%: guardrails clean, evidence growing.
  43. flag · core
    flag at 50% (applied)
    allow: all checks passed
  44. state · core
    rollout_10 → rollout_50
    flag expanded to 50%
  45. flow · core
    lengo-analyze started (analyze_28, attempt 1)
    session completed
  46. handoff · ai-lengo-analyze-local
    analyst → core: done accepted
    Expanded to 50%: guardrails clean, evidence growing.
  47. flag · core
    flag at 100% (applied)
    allow: all checks passed
  48. state · core
    rollout_50 → rollout_100
    flag expanded to 100%
  49. flow · core
    lengo-analyze started (analyze_41, attempt 1)
    session completed
  50. handoff · ai-lengo-analyze-local
    analyst → core: done accepted
    Expanded to 100%: guardrails clean, evidence growing.
  51. state · core
    rollout_100 → proven
    goal proven and guardrails clean at 100%
  52. flow · core
    lengo-scribe started (scribe, attempt 1)
    session completed
  53. handoff · ai-lengo-scribe-local
    scribe → core: done accepted, citations 100% valid
    Outcome report posted.
  54. state · core
    proven → reported
    Scribe posted the outcome report
  55. state · core
    reported → closed
    allow: all checks passed

Memory the agents cited

15 / 15 supplied
IDCited bySource
M-0002 strategist Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
M-0004 strategist Outcome M-0004: Reduce support tickets about fees by showing the fee before confirming
RB-001#0 strategist RB-001: Payment gateway timeouts > Overview
M-0002 launcher Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
RB-001#0 commander RB-001: Payment gateway timeouts > Overview
RB-001#1 commander RB-001: Payment gateway timeouts > Step 1
RB-001#6 commander RB-001: Payment gateway timeouts > Step 6
M-0002 scribe Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
M-0004 scribe Outcome M-0004: Reduce support tickets about fees by showing the fee before confirming
M-0002 strategist Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
M-0006 strategist Outcome M-0006: Reduce failed payments by 20%
RB-001#0 strategist RB-001: Payment gateway timeouts > Overview
M-0002 launcher Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
M-0002 scribe Outcome M-0002: Reduce failed payments caused by gateway timeouts by 20%
M-0006 scribe Outcome M-0006: Reduce failed payments by 20%

Agents may cite only IDs Core supplied in the latest context note; anything else counts against citation validity.

Flag changes

WhenChangeStatusTime to kill
goal_0001_gateway_retry
create → 1%		 applied —
goal_0001_gateway_retry
set percentage → 10%		 applied —
goal_0001_gateway_retry
deactivate		 applied 0 ms
goal_0001_c2_gateway_retry
create → 1%		 applied —
goal_0001_c2_gateway_retry
set percentage → 10%		 applied —
goal_0001_c2_gateway_retry
set percentage → 50%		 applied —
goal_0001_c2_gateway_retry
set percentage → 100%		 applied —