📝 Add lean Athanor workpad (goal, journal, research, reports)

Captures the lean-build redesign work: goal, session journal, Athanor
usage research from dirigent and spacecraft, and the implementation
and review reports.

docs/workpad/journals/2026-10-05-21-athanor.md

@@ -0,0 +1,56 @@
+# Athanor — Igor Session Journal
+
+**Date**: 2026-10-05
+**Topic**: athanor — adjusting the development system (Athanor) for Opus 5.5
+**Worktree/branch**: main
+
+## Log
+
+<!-- Append-only. This journal is the testimony of one path through the problem: record the tangents and dead ends, not only the results. The path can't be walked again; the record can be read. -->
+
+- 21:00 — Session start. `spire:igor` skill not registered in this remote session (`/reload-plugins` unavailable remotely); loaded skill from `plugins/spire/skills/igor/SKILL.md` directly. Spire agent types (athanor, researcher, search, adept…) not available as subagent_types — using general-purpose with explicit model.
+- 21:00 — Pulled main: f1de89e..08e22a7 (codex plugin icons/metadata, no Athanor changes).
+- 21:00 — Read `plugins/spire/agents/athanor.md` (pinned `claude-opus-4-6`; skills: spire:project, spire:workpad, spire:implementation, superpowers:*) and `plugins/spire/skills/implementation/SKILL.md`. There is no separate athanor skill.
+- 21:00 — Dispatched two search agents (Sonnet): ../spacecraft and ../dirigent, looking for recent reports about Athanor usage. User notes dirigent definitely has one.
+- 21:10 — Dirigent search back → `research/2026-10-05-21-athanor-usage-dirigent.md`. Primary source: dirigent `reports/2026-10-01-lean-process-report.md` + 2026-10-05 addendum addressed to spire authors. Key: athanor's internal end review (pinned 4.6) found 0 issues; independent Opus 5.5 review found 6 Important (incl. archive data loss). Proposals: model-id guard rails, plans/reviews outside athanor, per-block owner model, foreground-only grandchildren, athanor's job ends at blocks+tests+run log. Secondary: `2026-09-23-14-stalled-agents-forensics.md` (rate-limit kill, unclosed state).
+- 21:12 — Spacecraft search back → `research/2026-10-05-21-athanor-usage-spacecraft.md`. Spacecraft's "athanor" = superpowers `dispatching-orchestrator` (model: opus), not Spire's agent — same role, so findings transfer. Primary: `reports/2026-09-29-13-orchestration-overhead-attribution.md`, `reports/2026-09-27-13-strategy-mvp-retrospective/report.md`. Converges with dirigent: lean review (per hotspot/phase), foreground dispatch (bg grandchildren stall orchestrator), never carry implementer across tasks (960k tokens), `model: opus` alias silently overrode 4.6 pins (184/184 → 5.5), 5.5 plans ~11× oversized, weaken-check reflex, tests that can't fail.
+- 21:20 — User direction: overhaul/rewrite implementation skill + athanor for lean implementation. Points: superpowers ceremony (many pitstops) is the problem with 5.5; 5.5 plans excellent but long; review/test runs slow dev; build larger chunks, review once per phase; "attack the plan" after it is written; Sonnet experiment was partly plan issues, not only model; spawning rails per harness and per model; trunk-and-forks idea (adept-like trunk implementer, forks per task, updated by orchestrator, may live a whole phase); 5.5 fine to ~600k, both extremes (tiny implementers / keep-implementer) failed; skill must be lean and leave decision room — don't encode incidents as law. Dirigent lean report named as most mature source.
+- 21:20 — Dispatched Opus general-purpose agent → `reports/2026-10-05-21-implementation-skill-redesign.md` (diagnosis, principles, lean cycle, trunk-and-forks feasibility, classification principle/reference/project-setting/not-encoded, proposed SKILL.md outline + athanor changes, open questions).
+- 21:30 — Redesign report back → `reports/2026-10-05-21-implementation-skill-redesign.md` (author stamped claude-opus-5-5). Lean loop with explicit "attack the plan" step producing a separate build plan; athanor → build furnace pinned 5.5, superpowers dropped; reviews Igor-side. Trunk/forks: `fork` copies the caller → athanor itself must be the trunk; variant A (trunk notes) as baseline, B (athanor forks per complex block) as trial; preflight proposed. Classification table separates principle/reference/project/not-encoded. 7 open questions. Igor's notes: proposed SKILL grows 95→130-160 lines + 3 references + 2 new role agents — check against user's "lean skill" demand.
+- 21:40 — User: sizes are guesstimates for now (dirigent will work on orchestrator token introspection / signals into running work); Igor must own the design direction it delegates, not relay agent output. Asked how Igor understands "attacking the plan". Checked dirigent lean report: origin is the ~10-min step "plan comparison (adversarial, against the code, ~6 min) → amendment (fold blockers into plan B, cut into 6 blocks, ~4 min)" — "cheapest quality gate of the day". Igor's reading: the attack is the upstream counterweight that makes dropping per-task pitstops safe; the redesign report weighted it as restructuring and left the adversarial-against-code half as an optional merge — inverted emphasis. Also: athanor end review merely replayed the comparison's risk checklist → attack output must not become the reviewer's scope.
+- 21:50 — User corrections: superpowers not abandoned — rules changed (reports agree: spacecraft kept it, overrode via CLAUDE.local.md/templates/memories; dirigent kept athanor + lean brief). Redesign report's "drop superpowers" was the agent's proposal, not evidence. Model: `opus` alias passes Igor's model to the athanor; the "Pass" review was a 4.6 session (user's attribution; dirigent report could only say "unknown"). Model traits per user: 4.6 fast, capable, sometimes better at intent; 5.5 catches more, bolder decisions, can replace frequent small reviews (esp. Rust), but tends to take user's word as holy or reverse 100%. Igor gave its own athanor-process restructure in chat (see next entries).
+- 21:55 — Igor proposed Athanor restructure (Igor-side plan → attack → brief with deliberate model; Athanor phase turns: intake=trunk + trunk notes → foreground blocks, forks for complex trunk-area blocks, fresh for mechanical → gate → tests once → run log; Igor-side phase review with stamped id → resume Athanor for fix → next phase or fresh Athanor). User: fully agreed. 5.5 is the default; 4.6 to be replaced eventually but useful as "understanding the human" interpreter (Fable better). Keep superpowers as tools, drop subagent-driven-development preload. Future: grill-me or own playbook for plans; journals helped and are worth mining; dirigent now writes properly sized plans.
+- 22:00 — Wrote goal `goals/lean-athanor.md`. Decided to skip separate design+plan stages: markdown-only change, goal is precise — the goal is the spec. Dispatched one Opus implementer (general-purpose, model opus) → commits on main + `reports/2026-10-05-22-lean-athanor-implementation.md`. Fresh reviewer against the goal to follow.
+- 22:05 — User: bump the plugin version once the work is finished (Codex will also report how it performs). Told the implementer to skip its version bump; Igor bumps after review.
+- 22:12 — Implementer back (stamped claude-opus-5-5): commits `e515207`, `146a48c` on main, not pushed; report `reports/2026-10-05-22-lean-athanor-implementation.md` (uncommitted). SKILL.md 85 lines + 3 references; athanor pinned 5.5, preloads project/workpad/implementation; Igor stage 4b + phase review; harness-notes → pointer. No version bump. Flags: adept dispatch examples pass `opus` over 4.6 pin; igor/adept/zathras still pinned 4.6; harness "verified" = schema only; spire:project template lacks build-setting fields.
+- 22:12 — Dispatched fresh Opus reviewer against the goal → `reports/2026-10-05-22-lean-athanor-review.md`.
+- 22:20 — Review back (stamped claude-opus-5-5): pass with fixes, C0/I3/M8, 22/25 goal boxes met. I1 adept examples pass `opus` over pin; I2 nothing ensures plan/attack/review run on 5.5; I3 model-tiers routes research+impl to athanor as one brief. Notable minors: alias evidence confounded (use spacecraft 184/184); athanor pin lacks `[1m]` unlike other pins; fork availability itself unverified. Decision: one fix pass by resuming the implementer (≈150k ctx, resume from root is safe) — our own lean loop. Re-pin question stays with user.
+- 22:35 — Fix pass back: commit `5909221` (I1–I3 fixed, cheap minors fixed, `[1m]` left for user; fix-pass section appended to implementation report). Dispatched fresh Opus scoped re-check of I1–I3 only → appends to review report. Pending user: re-pin igor/adept/zathras; `[1m]` on athanor pin; then version bump 0.2.0, commit reports+journal, push on approval.
+- 22:40 — Re-check back (stamped claude-opus-5-5): I1–I3 confirmed fixed, no new Critical/Important. Loop stops here per stop rule. Logged minor: "Planned implementation" row (igor/SKILL.md:81, model-tiers.md:11) doesn't say the plan must be attacked first. Awaiting user decisions on pins before version bump.
+- 22:45 — User: athanor pin → `claude-opus-5-5[1m]`; zathras too. Igor and adept not re-pinned (stay `claude-opus-4-6[1m]`) — not decided, left as is. Dispatched Sonnet for pins + version bump 0.2.0 (both plugin.json) + commit of goal, reports, research, journal (explicit paths; user's own goal/spec edits untouched). No push yet.
+
+## Adepts
+
+- Roster empty at boot (no adepts in this workpad).
+
+## Artifacts
+
+- `docs/workpad/research/2026-10-05-21-athanor-usage-dirigent.md`
+- `docs/workpad/research/2026-10-05-21-athanor-usage-spacecraft.md`
+- `docs/workpad/reports/2026-10-05-21-implementation-skill-redesign.md`
+- `docs/workpad/goals/lean-athanor.md`
+- `docs/workpad/reports/2026-10-05-22-lean-athanor-implementation.md`
+- `docs/workpad/reports/2026-10-05-22-lean-athanor-review.md`
+- Commits `e515207`, `146a48c`, `5909221` (main, unpushed)
+
+## Open threads
+
+- Version bump (Claude + Codex plugin.json, marketplace if it carries one) after review passes.
+- Trunk-and-forks preflight + trial (venue TBD).
+- Mine journals for deeper insights (future).
+- Minor: "Planned implementation" delegation row should note plan must be attacked first.
+- Follow-up: build-setting fields in `spire:project` template; pinned 5.5 planner/reviewer role agents (user decision).
+
+## Graduation candidates
+
+- Attacking the plan = adversarial check against the code + reshape into build chunks, ~10 min; it is what pays for removing per-task review. (Rationale: easy to misread as mere regrouping; the misreading loses the quality gate.)