stack/docs/scratchpads/gateway-security-20260313.md

Gateway Security Hardening Scratchpad

Metadata

• Date: 2026-03-13
• Worktree: /home/jwoltje/src/mosaic-mono-v1-worktrees/sec-remediation
• Branch: fix/gateway-security
• Scope: Finish 7 requested gateway security fixes without switching branches or worktrees
• Related tracker: worker task only; docs/TASKS.md is orchestrator-owned and left unchanged
• Budget assumption: no explicit token cap; keep scope limited to requested gateway/auth/validation hardening

Objective

Complete the remaining gateway security hardening work:

1. Chat HTTP auth guard enforcement
2. Chat WebSocket session validation
3. Ownership checks on by-id CRUD routes
4. Global validation pipe and DTO enforcement
5. Rate limiting
6. Helmet security headers
7. Body limit and env validation

Plan

1. Reconcile current worktree state against requested fixes.
2. Patch or extend tests first for DTO/auth behavior mismatches.
3. Implement minimal code changes to satisfy tests and requested behavior.
4. Run targeted gateway tests.
5. Run baseline gates: pnpm typecheck, pnpm lint.
6. Perform manual code review and record findings.
7. Commit, push branch, open PR, send OpenClaw event, remove worktree.

Progress Log

2026-03-13T00:00 local

• Loaded required Mosaic/global/runtime instructions and applicable skills.
• Confirmed active worktree is sec-remediation and branch is already dirty with prior session changes.
• Identified remaining gaps: DTO validation mismatch and non-requested socket auth helper typing/behavior drift.

TDD Notes

• Required: yes. This is security/auth/permission logic.
• Approach: update targeted unit tests first, verify failure, then patch code minimally.

Verification Log

• Pending.

Risks / Blockers

• Repository instructions conflict on PR merge behavior; user explicitly instructed PR-only, no merge. Follow user instruction.
• Existing worktree contains prior-session modifications; do not revert unrelated changes.