Per-product surgical additions to existing epics (not cross-cutting): - P1 route: 8pts (key redaction, SSE billing, token math, CI runner) - P2 drift: 12pts (mTLS revocation, state lock recovery, pgmq visibility, RLS leak, entropy scrubber) - P3 alert: 10pts (HMAC replay, claim-check, out-of-order correlation, free tier, tenant isolation) - P4 portal: 9pts (partial scan recovery, ownership conflicts, Meilisearch rebuild, VCR freshness, free tier) - P5 cost: 7pts (concurrent baselines, remediation RBAC, Clock interface, property tests, Redis fallback) - P6 run: 15pts (shell AST parsing, canary suite, intervention TTL, streaming audit, crypto signatures) Total: 61 story points across 30 new stories
2.9 KiB
dd0c/cost — Epic Addendum (BMad Review Findings)
Source: BMad Code Review (March 1, 2026) Approach: Surgical additions to existing epics — no new epics created.
Epic 2 Addendum: Anomaly Detection Engine
Story 2.8: Concurrent Baseline Update Conflict Resolution
As a reliable anomaly detector, I want concurrent Lambda invocations updating the same baseline to converge correctly via DynamoDB conditional writes, so that Welford running stats are never corrupted.
Acceptance Criteria:
- Two simultaneous updates to the same baseline both succeed (one retries via ConditionalCheckFailed).
- Final baseline count reflects both observations.
- Retry reads fresh baseline before re-applying the update.
Estimate: 2 points
Story 2.9: Property-Based Anomaly Scorer Validation (10K runs)
As a mathematically sound anomaly detector, I want the scorer validated with 10K property-based test runs, so that edge cases in the scoring function are caught before launch.
Acceptance Criteria:
- Score is always between 0 and 100 for any valid input (10K runs, seed=42).
- Score monotonically increases as cost increases (10K runs).
- Reproducible via fixed seed.
Estimate: 1 point
Epic 3 Addendum: Notification Service
Story 3.7: Remediation RBAC (Slack Action Authorization)
As a security-conscious operator, I want only account owners to trigger destructive remediation actions (Stop Instance), so that a random Slack viewer can't shut down production.
Acceptance Criteria:
- Owner role can trigger "Stop Instance" (200).
- Viewer role gets 403 with "insufficient permissions".
- User from different Slack workspace gets 403.
- Non-destructive actions (snooze, mark-expected) allowed for all authenticated users.
Estimate: 2 points
Epic 4 Addendum: Customer Onboarding
Story 4.7: Clock Interface for Governance Tests
As a testable governance engine, I want time-dependent logic (14-day auto-promotion) to use an injectable Clock interface, so that governance tests are deterministic and don't depend on wall-clock time.
Acceptance Criteria:
FakeClockcan be injected intoGovernanceEngine.- Day 13: no promotion. Day 15 + low FP rate: promotion. Day 15 + high FP rate: no promotion.
- No
Date.now()calls in governance logic — all via Clock interface.
Estimate: 1 point
Epic 8 Addendum: Infrastructure & DevOps
Story 8.7: Redis Failure Safe Default for Panic Mode
As a resilient platform, I want panic mode checks to default to "active" (safe) when Redis is unreachable, so that a Redis outage doesn't accidentally disable safety controls.
Acceptance Criteria:
- Redis disconnect →
checkPanicMode()returnstrue(panic active). - Warning logged: "Redis unreachable — defaulting to panic=active".
- Normal operation resumes when Redis reconnects.
Estimate: 1 point
Total Addendum: 7 points across 5 stories