📝 docs: 2026-05-05 autonomous session recap #81
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# 2026-05-05 Autonomous Session Recap
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On 2026-05-05, ARCODANGE shipped a record 23 PRs to dance-lessons-coach using the Mistral Vibe autonomous multi-process pattern. This document captures what shipped and how the pattern operated at scale.
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---
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## What shipped
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PRs merged to main on 2026-05-05, grouped by ADR-0028 phase.
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### Phase A — magic-link (morning batch)
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Full passwordless authentication flow, ADR-0028 Phases A.1 through A.5:
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- **#56** :rocket: feat(server): api.v2_enabled hot-reload via middleware gate (ADR-0023 Phase 4)
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- **#57** :bug: fix(bdd): shouldEnableV2 substring match + gate regression scenario
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- **#58** :memo: docs(adr): ADR-0028/0029/0030 — passwordless auth + Mailpit + BDD email strategy
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- **#59** :sparkles: feat(email): pkg/email + Mailpit docker-compose service (ADR-0029 Phase A.1)
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- **#60** :test_tube: feat(bdd): pkg/bdd/mailpit/ HTTP client + integration tests (ADR-0030 Phase A.2)
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- **#61** :elephant: feat(user): magic_link_tokens table + repository (ADR-0028 Phase A.3)
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- **#62** :rocket: feat(auth): magic-link request + consume HTTP handlers (ADR-0028 Phase A.4)
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- **#63** :test_tube: feat(bdd): magic-link BDD scenarios + bcrypt overflow fix (ADR-0028 Phase A.5)
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- **#65** :rocket: feat(user): magic-link expired-token cleanup loop (ADR-0028 Phase A consequence)
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### Phase B prep
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OIDC configuration groundwork, ADR-0028 Phase B.1:
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- **#64** :gear: feat(config): OIDC provider config skeleton (ADR-0028 Phase B prep)
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- **#68** :memo: docs: mkcert local HTTPS setup + Makefile cert target (ADR-0028 Phase B prep)
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- **#69** :rocket: feat(auth): pkg/auth skeleton for OpenID Connect (ADR-0028 Phase B prep)
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### Phase B implementation (evening batch)
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OIDC client and handlers, ADR-0028 Phases B.3 and B.4:
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- **#74** :sparkles: feat(auth): implement OIDC client methods — Discover, RefreshJWKS, ExchangeCode, ValidateIDToken
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- **#75** :rocket: feat(auth): OIDC HTTP handlers /start + /callback with PKCE + sign-up-on-first-use
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- **#76** :test_tube: test(auth): OIDC handler unit tests covering start/callback rejection paths and PKCE redirect
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### Documentation
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Reference material produced throughout the session:
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- **#66** :memo: docs: add top-level CHANGELOG.md (keepachangelog format)
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- **#71** :memo: docs: ADR-0028 Phase B roadmap (B.3 / B.4 / B.5 outline)
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- **#72** :memo: docs(changelog): record PRs #67-#71
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- **#73** :memo: docs: AUTH.md synthesis (Phase A complete, Phase B partial)
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- **#77** :memo: docs(changelog): record PRs #74, #75, #76
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- **#78** :memo: docs: Mistral autonomous pattern guide for contributors
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- **#79** :memo: docs(changelog): record PRs #73, #78
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- **#80** :memo: docs: PHASE_B_ROADMAP — mark B.3 + B.4 done
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---
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## How it works (high-level)
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The Mistral Vibe autonomous multi-process pattern compresses sprint-level throughput into a single day by parallelizing independent work streams.
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One task equals one isolated git worktree created via `git worktree add`. Each worktree branches from current `origin/main`, eliminating race conditions that previously plagued the harness (Q-038 fix via pre-fetched origin).
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One worker equals one `vibe -p` invocation reading a `CONTEXT.md` brief. The worker executes the full PR lifecycle end-to-end: code implementation, build and test, commit with conventions, push to remote, PR creation via Gitea API, and merge attempt. Multiple workers (typically 2-4) run concurrently in separate worktrees, each working on different files and features.
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A `dispatch-batch.sh` script orchestrates the parallel workers and handles cross-worker dependencies. For the rare gaps — price-cap restrictions, broken tests, or ambiguous requirements — a trainer takeover (~5% of cases, typically within 5 minutes) covers the edge cases without blocking the batch.
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See [documentation/MISTRAL-AUTONOMOUS-PATTERN.md](MISTRAL-AUTONOMOUS-PATTERN.md) for the complete pattern specification.
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---
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## Numbers
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- **23 PRs** Mistral autonomously merged to main in one calendar day
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- **95-100% autonomy** per batch; trainer takeover only for Q-058 and Q-062 edge cases
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- **Wall-clock parallel**: ~2 minutes for 2 PRs in a concurrent batch (vs ~3-4 minutes serial)
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- **Cost**: ~$0.50-1.50 per simple PR (documentation, minor changes), ~$2-3 per code-heavy PR (complex logic, multiple files)
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---
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## Why this matters
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The pattern compresses a sprint of work into a single day, shifting the operator role from execution to supervision. ADR-0028 (the passwordless auth migration) was essentially completed in this single session — Phase A (magic-link) fully shipped, Phase B (OIDC) advanced through B.4, with only Phase B.5 (BDD scenarios) remaining.
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---
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## Cross-references
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- [ADR-0028](../adr/0028-passwordless-auth-migration.md) — passwordless auth migration strategy
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- [AUTH.md](AUTH.md) — current authentication system state
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- [MISTRAL-AUTONOMOUS-PATTERN.md](MISTRAL-AUTONOMOUS-PATTERN.md) — the pattern itself
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- [PHASE_B_ROADMAP.md](PHASE_B_ROADMAP.md) — remaining Phase B work
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- [CHANGELOG.md](../CHANGELOG.md) — complete PR list
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