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Gabriel Radureau 99c71ca815 📝 docs: 2026-05-05 autonomous session recap (#81 )

Co-authored-by: Gabriel Radureau <arcodange@gmail.com>
Co-committed-by: Gabriel Radureau <arcodange@gmail.com>

2026-05-05 22:43:27 +02:00

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2026-05-05 Autonomous Session Recap

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.

What shipped

PRs merged to main on 2026-05-05, grouped by ADR-0028 phase.

Phase A — magic-link (morning batch)

Full passwordless authentication flow, ADR-0028 Phases A.1 through A.5:

#56 🚀 feat(server): api.v2_enabled hot-reload via middleware gate (ADR-0023 Phase 4)
#57 🐛 fix(bdd): shouldEnableV2 substring match + gate regression scenario
#58 📝 docs(adr): ADR-0028/0029/0030 — passwordless auth + Mailpit + BDD email strategy
#59 ✨ feat(email): pkg/email + Mailpit docker-compose service (ADR-0029 Phase A.1)
#60 🧪 feat(bdd): pkg/bdd/mailpit/ HTTP client + integration tests (ADR-0030 Phase A.2)
#61 🐘 feat(user): magic_link_tokens table + repository (ADR-0028 Phase A.3)
#62 🚀 feat(auth): magic-link request + consume HTTP handlers (ADR-0028 Phase A.4)
#63 🧪 feat(bdd): magic-link BDD scenarios + bcrypt overflow fix (ADR-0028 Phase A.5)
#65 🚀 feat(user): magic-link expired-token cleanup loop (ADR-0028 Phase A consequence)

Phase B prep

OIDC configuration groundwork, ADR-0028 Phase B.1:

#64 ⚙️ feat(config): OIDC provider config skeleton (ADR-0028 Phase B prep)
#68 📝 docs: mkcert local HTTPS setup + Makefile cert target (ADR-0028 Phase B prep)
#69 🚀 feat(auth): pkg/auth skeleton for OpenID Connect (ADR-0028 Phase B prep)

Phase B implementation (evening batch)

OIDC client and handlers, ADR-0028 Phases B.3 and B.4:

#74 ✨ feat(auth): implement OIDC client methods — Discover, RefreshJWKS, ExchangeCode, ValidateIDToken
#75 🚀 feat(auth): OIDC HTTP handlers /start + /callback with PKCE + sign-up-on-first-use
#76 🧪 test(auth): OIDC handler unit tests covering start/callback rejection paths and PKCE redirect

Documentation

Reference material produced throughout the session:

#66 📝 docs: add top-level CHANGELOG.md (keepachangelog format)
#71 📝 docs: ADR-0028 Phase B roadmap (B.3 / B.4 / B.5 outline)
#72 📝 docs(changelog): record PRs #67-#71
#73 📝 docs: AUTH.md synthesis (Phase A complete, Phase B partial)
#77 📝 docs(changelog): record PRs #74, #75, #76
#78 📝 docs: Mistral autonomous pattern guide for contributors
#79 📝 docs(changelog): record PRs #73, #78
#80 📝 docs: PHASE_B_ROADMAP — mark B.3 + B.4 done

How it works (high-level)

The Mistral Vibe autonomous multi-process pattern compresses sprint-level throughput into a single day by parallelizing independent work streams.

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).

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.

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.

See documentation/MISTRAL-AUTONOMOUS-PATTERN.md for the complete pattern specification.

Numbers

23 PRs Mistral autonomously merged to main in one calendar day
95-100% autonomy per batch; trainer takeover only for Q-058 and Q-062 edge cases
Wall-clock parallel: ~2 minutes for 2 PRs in a concurrent batch (vs ~3-4 minutes serial)
Cost: ~$0.50-1.50 per simple PR (documentation, minor changes), ~$2-3 per code-heavy PR (complex logic, multiple files)

Why this matters

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.

Cross-references

ADR-0028 — passwordless auth migration strategy
AUTH.md — current authentication system state
MISTRAL-AUTONOMOUS-PATTERN.md — the pattern itself
PHASE_B_ROADMAP.md — remaining Phase B work
CHANGELOG.md — complete PR list

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