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feat(pstack): promote GPT-6 Codex families to stock, new first-run defaults, README rewrite - #16

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feat(pstack): promote GPT-6 Codex families to stock, new first-run defaults, README rewrite#16
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@thisguymartin thisguymartin commented Sep 28, 2026 •
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Closes #17

What changed

Astra, GPT-6 Sol, and Luna are now stock families and carry the first-run defaults. The "additional model matrix" tier from #9 is gone; the stock matrix has seven rows. codex:gpt-5.6-sol stays selectable, and existing sheets are untouched until a role is reassigned in /setup-pstack.

New first-run sheet:

Role Before After
feature, refactoring grok:grok-4.6@xhigh codex:gpt-6-sol@high
bug-fix, perf-issue, hillclimb codex:gpt-5.6-sol@max codex:gpt-6-sol@high
how explorer, swarm workers grok:grok-4.6@xhigh codex:gpt-6-luna@high
all four panel roles fable, gpt-5.6-sol, grok, opus claude:fable@max, codex:gpt-6-astra@high, grok:grok-4.6@xhigh, claude:opus@xhigh
judgment/prose, hardest tasks, how explainer, why, reflect unchanged unchanged

Panels still span three providers.

Contract changes

  • provider-dispatch.md: three GPT-6 rows join the stock matrix; a new ## Default panel section holds the one line that setup-pstack, arena, architect, and interrogate copy verbatim. Before, the static check derived the panel from every matrix row, which stops working once the matrix has more rows than panel lanes.
  • setup-pstack/SKILL.md: first-run sheet, "stock and flex" wording, probe table rows.
  • Default descriptors updated in arena, architect, interrogate, how, swarm, poteto-mode, and the feature, refactoring, bug-fix, perf-issue, hillclimb playbooks.
  • tests/skill-collision-repro.sh: quad invariant reads the Default panel line; solo-code invariant checks the sol-6 row.
  • runner/model-matrix.test.ts: asserts seven stock rows, GPT-6 descriptors in the first-run sheet, and the panel contract (four lanes, at least two providers, matrix default efforts).

Docs

  • README rewritten as pstack-flex's own page: one family table with what each needs and its first-run role, the default panel, a "how a role becomes a lane" diagram, install/setup/cost/contributing for this repo. No roadmap section.
  • docs/LANES.md, docs/USAGE.md, docs/reference.md describe the GPT-6 families as stock. UPSTREAM.md and UPSTREAM-FLEX.md record that the matrix and first-run sheet are now fork-owned and conflict on every upstream sync. CHANGES.md entry added.

No runner code changed; the Codex route (native spawn_agent under Codex, codex exec via the runner under Claude Code) is the one #9 already proved.

Verification

  • Bun tests, strict typecheck, static invariants, and plugin validation pass.
  • The exact candidate is installed in every affected harness.
  • The changed behavior passes from each real user surface.
  • The installed version, action, and observed result appear below.

Local gate on 7ad4ce3:

  • bun run test: 197 pass, 1 fail. The failure is runLane > terminalizes catchable failures after reserving output paths (run.test.ts:841), which chmods a file to 0o000; the sandbox this ran in is uid 0 and ignores permission bits. It fails identically on clean main here and is unrelated to this diff. CI runs non-root.
  • bun run typecheck: pass.
  • Manifest JSON parse (4 files): pass.
  • PSTACK_STATIC_ONLY=1 bash tests/skill-collision-repro.sh: 13 ok, 0 fail, including default model quad identical ... (claude:fable@max codex:gpt-6-astra@high grok:grok-4.6@xhigh claude:opus@xhigh) and solo code roles stay on the sol-6 row (codex:gpt-6-sol@high).
  • claude plugin validate plugins/pstack (Claude Code 2.1.284): passed.
  • git diff --check: clean.

Live evidence:

Not yet. This changes installed behavior (a first /setup-pstack run now proposes the GPT-6 defaults), so it needs the exact candidate installed in Claude Code and Codex, a first-run /setup-pstack that renders the new sheet with passing probes for gpt-6-astra@high, gpt-6-sol@high, and gpt-6-luna@high, and one mixed-panel smoke. The sandbox this was built in has no Codex or Grok CLI and no logins, so it stays a draft until that is recorded here.

🤖 Generated with Claude Code

https://claude.ai/code/session_01N3mzNDcZhX9LN5mWCDthg9

thisguymartin and others added 4 commits September 28, 2026 19:12
@thisguymartin @claude
docs(readme): describe the flex lanes, routing, and roadmap
66e5a46 
Bring the README up to date with the merged fork changes:

- List all three lane kinds with every family setup accepts: the stock
  four, the optional GPT-6 Codex families, and the four gateway families
  (DeepSeek Flash / V4 Pro, MiniMax M3 / M3.1 Flash Preview) with the key
  each needs.
- Add a short "how a role becomes a lane" diagram: model sheet -> parent
  resolves the route once -> native subagent or pstack-runner -> receipt.
  State the dropout rule and the two-provider panel diversity rule.
- Mention gateway keys and any-subset setups in Install, and the
  assignment-first, probe-before-write setup flow plus the sheet's
  location in Get started.
- Add a gateway row to the Claude Code / Codex table and a cost note that
  points at the USAGE.md cost playbook.
- Point badges, issue links, and the contributing section at this
  repository, and state the live-evidence merge gate from AGENTS.md.
- Add a Roadmap section linking the planned skill issues (#10-#15) and
  the open lane ideas (#3, #7).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3mzNDcZhX9LN5mWCDthg9
@thisguymartin @claude
Revert "docs(readme): describe the flex lanes, routing, and roadmap"
075ded9 
This reverts commit 66e5a46 and restores README.md to its state on main.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3mzNDcZhX9LN5mWCDthg9
@thisguymartin @claude
feat(pstack): promote GPT-6 Codex families to stock with new defaults
1888f61 
Astra, GPT-6 Sol, and Luna move from the "additional" matrix into the
stock model matrix. The first-run sheet now uses them: GPT-6 Sol for
the solo code-writing roles, Luna for exploration and swarm workers,
and Astra in place of GPT-5.6 Sol on every panel. GPT-5.6 Sol stays a
selectable family for existing sheets.

provider-dispatch gains a "## Default panel" line that is the single
source for the four panel lanes; setup-pstack, arena, architect, and
interrogate copy it verbatim and the static invariant reads it instead
of deriving the panel from every matrix row. The solo-code invariant
now checks the sol-6 row. The matrix test asserts the seven stock rows,
the GPT-6 rows in the first-run sheet, and the panel contract.

Tracked in #17.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3mzNDcZhX9LN5mWCDthg9
@thisguymartin @claude
docs: rewrite README as pstack-flex and document the stock GPT-6 defa…
7ad4ce3 
…ults

README is now the fork's own page: titled pstack-flex, one table of every
family setup accepts with what each needs and its first-run role, the
default panel, a "how a role becomes a lane" diagram, and install, setup,
cost, and contributing sections written for this repository. No roadmap;
issues carry that.

LANES.md, USAGE.md, and reference.md describe the GPT-6 families as stock
and show the new first-run defaults. UPSTREAM.md and UPSTREAM-FLEX.md
record that the matrix and first-run sheet are now fork-owned and will
conflict on every upstream sync. CHANGES.md gets the entry.

Tracked in #17.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3mzNDcZhX9LN5mWCDthg9
@thisguymartin thisguymartin changed the title docs(readme): describe the flex lanes, routing, and roadmap feat(pstack): promote GPT-6 Codex families to stock, new first-run defaults, README rewrite Sep 28, 2026
@thisguymartin
thisguymartin marked this pull request as draft September 28, 2026 19:27
@thisguymartin
thisguymartin marked this pull request as ready for review September 28, 2026 19:30
@thisguymartin
thisguymartin merged commit c3bf1de into main Sep 28, 2026
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@thisguymartin
thisguymartin deleted the claude/youthful-dirac-vd1ei1 branch September 28, 2026 19:34
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Promote the GPT-6 Codex families to stock and put them in the first-run defaults

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