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docs(voyage): add Mermaid architecture diagrams + primitives decision-matrix

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Replace the ASCII pipeline figure in README with two Mermaid diagrams —
the full pipeline (all 7 commands + 7 handover contracts) and agents per
phase — and add a "Primitives per step" decision-matrix to
docs/architecture.md, pointed to from README.

Corrects prior prose: /trekexecute spawns no sub-agents; Phase 5 swarm is
6 fixed + 2 conditional; cross-cutting = 7 hook scripts incl. Stop->OTEL.

Both diagrams validated with mermaid-cli 11.12.0 (render clean);
node --test 756/0 fail (doc-consistency pins intact).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017AkavgP4v6QT1x8aZtRa9S
This commit is contained in:
Kjell Tore Guttormsen 2026-06-24 11:26:44 +02:00
commit 8112e4f45c
2 changed files with 74 additions and 15 deletions
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18
docs/architecture.md
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@ -80,6 +80,24 @@ The `.html` files (`brief.html`, `plan.html`, `review.html`) are produced by `sc
No code-level dependency between plugins — the contract is filesystem-level only.
### Primitives per step (decision matrix)
Which native Claude Code primitive each pipeline step runs on today, and the alternatives that were considered and where they landed. Companion to *Delegate the engine, keep the policy* above; the full decision records live in `docs/voyage-vs-cc-balance-analysis.md`, `docs/T1-cc26-delegated-orchestration.md`, and `docs/T2-cc27-workflow-substrate.md`.
| Step | Primitive today (production) | Alternatives considered (status) |
|---|---|---|
| **brief** | Inline interview loop → `brief.md` (framing gate) | `AskUserQuestion` as the Q&A engine (recommended, not yet wired); Skill/Workflow auto-orchestration (rejected — one-shot, can't span slash-command/handover boundaries) |
| **research** | Inline spawns a foreground swarm; MCP per agent¹ | Delegated `synthesis-agent` (PoC measured Δ main-context ≈ 0 → ships **dormant**, wired to nothing) |
| **plan** | Inline: parallel explorer swarm → synthesis → adversarial `plan-critic` | Delegated orchestrator via nested sub-agents (CC-26 → lean NO, not wired; `planning-orchestrator.md` is a reference doc, not a spawnable agent) |
| **execute** | Inline step loop; multi-session via `git worktree` + `claude -p` waves; deterministic manifest audit | CC `TaskCreate`/`TodoWrite` for progress/resume (insufficient — carries no step status / attempts / SHA / drift → own typed `progress.json` contract) |
| **review** | Inline parallel reviewers (no cross-feed) → `review-coordinator` Judge | **Workflow** substrate for Phase 5–6 (bake-off POSITIVE: +4.4 % tokens / +54 % wall-time → shipped **opt-in `--workflow`**, not default; wholesale substrate swap declined) |
| **continue** | Inline reads `.session-state.local.json` → zero-confirm resume | CC `--resume` (transcript replay, not typed work-state → insufficient) |
| **cross-cutting** | 7 hook scripts: `pre-bash` + `pre-write` guards, `post-bash` stats, `session-title`, `pre-`/`post-compact` flush, **`Stop`→OTEL** export | — |
¹ MCP per research agent: `docs-researcher` → Microsoft Learn + Tavily · `community-`/`security-`/`contrarian-researcher` → Tavily (+ WebSearch/WebFetch) · `gemini-bridge` → Gemini Deep Research MCP. Graceful degradation when an MCP server is absent.
**Legend:** *production* = wired and active · *dormant* = shipped but wired to nothing (`synthesis-agent`) · *opt-in* = behind a flag (`--workflow`) · *not wired* = considered, deferred (delegated orchestrator, the `AskUserQuestion` brief engine).
## State
All artifacts in one project directory (default):