chore: initial monorepo scaffold + WDS Phase 1+2 artifacts

- Nx 22.7 monorepo (pnpm 11.1, TypeScript 5.9, Node 24)
- apps/api: NestJS 11 (CJS conforme CODING-RULES.md PGD-DB-004)
- apps/web: React 19 + Vite 8 (ESM)
- libs/shared/api-interface: Zod contract base
- Docker Compose dev: Postgres 18, Valkey 8, MinIO, Mailpit
- WDS artifacts:
  - design-artifacts/A-Product-Brief/ (5 docs canônicos + 16 dialogs)
  - design-artifacts/B-Trigger-Map/ (hub + 4 personas + feature impact)
- Stack canon: STACK.md v2.2 + CODING-RULES.md v2.0 + brand.md
- AGENTS.md + README.md como entrada para devs/agentes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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2026-05-27 14:34:20 +00:00
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# Agent Fallback Troubleshooting
### Issue: Session spawns Claude instead of Codex
**Symptoms:**
- Output shows Claude-specific messages (e.g., "You've used 84% of your weekly limit")
- Expected Codex but got Claude
**Cause:** The `--agent` flag must be passed to `story-automator tmux-wrapper spawn`, not to `build-cmd`.
**Correct Usage (v1.4.0+):**
```bash
# Method 1: Use --agent flag on spawn (RECOMMENDED)
session=$("$scripts" tmux-wrapper spawn dev "$epic" "$story_id" \
--agent codex \
--command "$("$scripts" tmux-wrapper build-cmd dev "$story_id")")
# Method 2: Set environment variable before spawn
export AI_AGENT="codex"
session=$("$scripts" tmux-wrapper spawn dev "$epic" "$story_id" \
--command "$("$scripts" tmux-wrapper build-cmd dev "$story_id")")
```
**Wrong Usage:**
```bash
# WRONG - this doesn't work
session=$("$scripts" tmux-wrapper spawn dev "$epic" "$story_id" \
--command "$("$scripts" tmux-wrapper build-cmd dev "$story_id" --agent codex)")
```
### Issue: Monitor reports "stuck" but Codex is active
**Symptoms:**
- `story-automator monitor-session` returns `stuck` state after 4 polls
- Manual inspection shows Codex still producing output (no prompt, output continues to grow)
**Cause:** The monitoring script relied on marker detection instead of output freshness.
**Fixed in v2.4.0:**
- Output freshness tracking (no marker reliance)
- `CODEX_OUTPUT_STALE_SECONDS` controls how long Codex can be silent before "stuck"
- Codex still gets 6 poll grace period before "stuck"
**Verification:**
```bash
# Check if session has AI_AGENT set
tmux show-environment -t "session-name" AI_AGENT
# Manual session status check
"$scripts" tmux-status-check "session-name" --project-root "$PWD"
```
### Issue: log command error when using --agent flag
**Symptoms:**
```
log: Unknown subcommand 'Codex agent detected - applying 1.5x timeout (90min)'
```
**Cause:** macOS has `/usr/bin/log` system command. If the `log()` bash function wasn't defined before first use, bash fell through to the system command.
**Fixed in v1.4.0:** The `log()` function is now defined before argument parsing in `story-automator monitor-session`.
### Issue: Manual polling required as workaround
**If monitoring still fails**, use this manual polling approach:
```bash
for i in {1..60}; do
sleep 30
# Check if session still exists
if ! tmux has-session -t "session-name" 2>/dev/null; then
echo "Session ended"
break
fi
# Check for shell prompt (completion indicator)
last_line=$(tmux capture-pane -t "session-name" -p | tail -1)
if echo "$last_line" | grep -qE '$|\$$|#$'; then
echo "Session complete (shell prompt detected)"
break
fi
done
```
### Issue: Codex sessions explore files but don't execute full workflow (v1.4.0)
**Symptoms:**
- Session output shows file exploration (`sed`, `rg`, `cat` commands)
- No actual review findings or story updates
- Sprint-status never changes from "review" to "done"
- Session completes but workflow steps 1-5 weren't followed
**Cause:** Codex uses natural language prompts and may not follow structured workflow instructions as reliably as Claude.
**Mitigation strategies:**
1. **Use Claude for code-review by default** - More reliable at following multi-step workflows
2. **Add explicit step markers** - Tell Codex to output "STEP 1 COMPLETE", "STEP 2 COMPLETE" etc.
3. **Verify after session** - Check story file Status field, not just sprint-status
**Recommended agent configuration for deterministic reliability:**
```yaml
agentConfig:
defaultPrimary: "auto"
defaultFallback: false # Disable global fallback; opt in per task
perTask:
# create-story: Either agent works well
create:
primary: "claude"
# dev-story: Either agent works, Codex may be faster for simple tasks
dev:
primary: "codex"
fallback: "claude"
# code-review: Claude recommended - more reliable at following workflow
review:
primary: "claude"
fallback: false
```
### Issue: Code-review doesn't update sprint-status.yaml
**Symptoms:**
- Code-review session completes
- Story file shows review was done (Dev Agent Record updated)
- But sprint-status.yaml still shows "review" instead of "done"
**Cause:** Code-review workflow step 5 updates sprint-status, but session may not reach step 5 or may use wrong story key format.
**Verification (v1.4.0):**
```bash
# Check story file status directly
"$scripts" orchestrator-helper story-file-status 8.2
# Compare with sprint-status
"$scripts" orchestrator-helper sprint-status get "8-2-flipside-crypto-provider"
# If story file shows "done" but sprint-status doesn't, manually sync:
# Edit _bmad-output/implementation-artifacts/sprint-status.yaml and change "8-2-story-name: review" to "done"
```
### When to manually intervene
**Intervene immediately if:**
1. **5 code-review cycles with no progress** - Agent likely stuck in a loop
2. **Story file shows "done" but sprint-status doesn't** - Sync issue, manual fix is faster
3. **Tests passing but review keeps finding issues** - May be false positives
4. **Codex sessions consistently incomplete** - Switch to Claude for that workflow
**Steps for manual intervention:**
```bash
# 1. Check actual story status
"$scripts" orchestrator-helper story-file-status {story_id}
# 2. Run tests to verify code quality
go test ./src/... || npm test
# 3. If tests pass, manually update sprint-status
# Edit: _bmad-output/implementation-artifacts/sprint-status.yaml
# Change: "8-2-story-name: review" to "8-2-story-name: done"
# 4. Resume orchestration - it will see "done" and proceed to commit
```
### Debugging Agent Detection
```bash
# Check current agent type detection
"$scripts" tmux-wrapper agent-type
# Check what CLI command would be used
"$scripts" tmux-wrapper agent-cli
# Check what command prefix would be used
"$scripts" tmux-wrapper skill-prefix
# View session environment
tmux show-environment -t "session-name"
# Check story key normalization (v1.4.0)
"$scripts" orchestrator-helper normalize-key "8.2"
"$scripts" orchestrator-helper normalize-key "8-2-flipside-crypto-provider"
```