# Handoff — Hardening R2 + Security Gate + Stacks

- **Date**: 2026-02-20 02:30
- **Session context**: Implement H2-H4, M1-M4 bugs + I2 Security Gate + I3 Conversational Stacks
- **Context consumed**: ~80%

## What Was Done

### PR #28 — Production Hardening Round 2 (7 bugs)
- **H2**: Healing loop reduced from max 7 to max 3 processes
- **H3**: configure_server now transactional (config only written after validation)
- **H4**: Connection tester uses asyncio.wait_for for proper cleanup
- **M1**: httpx pool limits (max_connections=10, max_keepalive=5)
- **M2**: aread_config async wrapper via asyncio.to_thread
- **M3**: Smart env vars parser preserves commas in values
- **M4**: Imports moved to top level in search.py
- **+17 tests** (714 → 731)

### PR #29 — Security Gate (I2)
- New `security/gate.py` module with pre-install safety checks
- Blocks: suspicious commands (bash/sh/curl/wget), archived repos
- Warns: shell metacharacters, low stars (<5), missing license, stale repos (>1yr)
- Integrated in configure_server between install and config write
- Non-blocking: gate failures don't prevent install
- New models: SecurityRisk, SecuritySignal, SecurityReport
- **+39 tests** (731 → 770)

### PR #30 — Conversational Stacks (I3)
- New `apply_stack` tool (11th MCP tool)
- 3 built-in stacks: data-science, web-dev, devops
- YAML format for custom shareable stacks
- dry_run preview mode
- New models: Stack, StackServer
- New dependency: pyyaml>=6.0
- **+30 tests** (770 → 800)

## Where We Stopped

- **Branch**: `main` (clean, all PRs merged)
- **Tests**: 800 passing
- **Tools MCP**: 11
- **CI**: All green (Python 3.11/3.12/3.13)
- **Open PRs**: 0

## What To Do Next

### Roadmap reference: `docs/issues/2026-02-19_premium-quality-roadmap.md`

#### Immediate (code)
1. **Version bump to v0.3.0** — Lockfile + Security Gate + Stacks justify a minor bump
2. **M5** — shutil.which() sync in healing (Trivial)
3. **L1** — Regex de segredos com falsos positivos (S)
4. **Update roadmap** — Mark I2, I3 as DONE

#### Next features
5. **I5** — Workflow understanding (L) — git + CI analysis for smarter recommendations
6. **A1+A2** — Ports formais + DI completo (L) — architecture quality

#### Human tasks (CRITICAL for adoption)
7. **D1** — Demo GIF (10/10 impact — most important for GitHub stars)
8. **D2** — npm wrapper (npx mcp-tap)
9. **D3** — awesome-mcp-servers + Reddit/HN

## Open Questions

1. Version bump: v0.3.0 recommended (lockfile + security + stacks = 3 major features since v0.2)
2. Old handoff `docs/handoff/2026-02-19_2400_lockfile-complete-all-merged.md` can be deleted (consumed this session)
3. PyYAML was added as dependency — verify it's in lockfile (uv.lock shows modified)

## Files Modified This Session

### PRs merged (3 total, 30 files changed)
See individual PR descriptions above.

## Quick Start for Next Session

```
Leia docs/handoff/2026-02-20_0230_hardening-r2-security-stacks.md
e docs/issues/2026-02-19_premium-quality-roadmap.md para contexto.
Branch: main (limpa, 800 testes, 11 tools)
Próximo: version bump v0.3.0, depois I5 ou A1+A2.
Tarefas humanas: D1 (demo GIF) é o mais importante.
```
