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paperclip/ui
Devin Foley c139d6c025 fix(codex-local): omit default model so codex CLI picks per auth mode (#7971)
## Thinking Path

> - Paperclip orchestrates AI agents through pluggable local adapters;
codex_local wraps OpenAI's `codex` CLI.
> - The codex_local adapter declares a hard-coded
`DEFAULT_CODEX_LOCAL_MODEL = "gpt-5.3-codex"` and multiple Paperclip
consumers (UI build-config, server route, OnboardingWizard, NewAgent
form, AgentConfigForm) fall back to it when the operator doesn't pick a
model.
> - That model — and every `*-codex` model plus the older
`gpt-5/5.1/5.2` lines — is API-key-only. Codex CLI rejects them on
ChatGPT subscription auth with "The 'gpt-5.3-codex' model is not
supported when using Codex with a ChatGPT account."
> - Every codex_local agent created through the default onboarding path
inherits this pin and breaks on its first heartbeat for any user authed
via `codex login` (ChatGPT).
> - claude_local already takes the right shape: its build-config only
sets `adapterConfig.model` when the operator actually picked one, and
falls through to whatever default `claude` CLI uses.
> - Codex CLI's own default is auth-mode-aware. ChatGPT-subscription
accounts get `gpt-5.5`; API-key accounts get the codex-tuned default. A
Paperclip-side pin masks this and downgrades whichever group it wasn't
built for.
> - This PR makes codex_local match claude_local's shape: omit
`adapterConfig.model` when the user picks "default," and let the CLI
choose. Subscription users stop breaking; API-key users stop getting
downgraded.
> - The benefit is auth-mode-correct defaults with no Paperclip-side
hard pin, plus future-proofing: when OpenAI bumps the CLI default we
inherit it for free.

## What Changed

- `packages/adapters/codex-local/src/ui/build-config.ts` — only set
`adapterConfig.model` when the operator picked one (parity with
`packages/adapters/claude-local/src/ui/build-config.ts`).
- `server/src/routes/agents.ts` — drop the codex_local-specific
`next.model = DEFAULT_CODEX_LOCAL_MODEL` fallback in
`applyCreateDefaultsByAdapterType`. Bypass-sandbox default is left in
place (security posture, not a model choice).
- `ui/src/pages/NewAgent.tsx`, `ui/src/components/AgentConfigForm.tsx`,
`ui/src/components/OnboardingWizard.tsx` — stop pre-populating the model
field with `DEFAULT_CODEX_LOCAL_MODEL` when the user selects the Codex
adapter. Other adapters' defaults (gemini_local, cursor, opencode_local)
are unchanged.
- `DEFAULT_CODEX_LOCAL_MODEL` is preserved as an exported constant for
downstream consumers / plugin authors who want to opt in to a pin; we
just stop forcing it on operators who didn't ask for one.
- Test: assert `buildCodexLocalConfig` omits `model` when input is
blank.

## Verification

- `pnpm exec vitest run
packages/adapters/codex-local/src/ui/build-config.test.ts
packages/adapters/codex-local/src/server/codex-args.test.ts
server/src/__tests__/adapter-registry.test.ts
server/src/__tests__/heartbeat-model-profile.test.ts
server/src/__tests__/agent-permissions-routes.test.ts` → 74/74 passing
- `pnpm exec vitest run ui/src/lib/duplicate-agent-payload.test.ts
ui/src/lib/acpx-model-filter.test.ts` → passing
- `pnpm tsc --noEmit -p .` → clean
- Live: I separately verified live during initial investigation that on
ChatGPT-subscription auth, `gpt-5.3-codex` is rejected and `gpt-5.5` is
what Codex CLI picks by default. Omitting model lets the CLI handle
that.

## Risks

- Telemetry: any sink that reads `adapterConfig.model` for cost
attribution will now see the empty/omitted case more often. The CLI
emits the actually-used model in its event stream; downstream telemetry
should already read from there for accuracy, but worth a check.
- Operator UX: "default" now means "whatever the CLI picks" instead of a
Paperclip-known model. The selectable catalog still includes `gpt-5.5`,
`gpt-5.4`, `gpt-5.3-codex`, etc. for operators who want to pin
explicitly.
- Existing agents are unaffected — their `adapterConfig.model` is
already set; this only changes the *new-agent* default flow.

## Related work

- Depends on: an open catalog-add PR adding `gpt-5.5` to the selectable
model list and to `CODEX_LOCAL_FAST_MODE_SUPPORTED_MODELS`. Operators
who want to switch to `gpt-5.5` explicitly need that PR merged first;
this PR is the structural change that makes "default" mean "let the CLI
choose."
- Closes #5371 — codex_local default model selection persists
`gpt-5.3-codex` instead of adapter default (this PR is the exact fix
#5371 proposes).
- Related: #5132 (opencode-local: hire-time default model fails on
ChatGPT-OAuth accounts) — same problem shape on a sibling adapter; not
fixed here but worth tracking for a parallel.
- Related: #5939 (codex_local adapter hardcodes `gpt-5.3-codex-spark`
validation, fails on ChatGPT OAuth accounts regardless of configured
model) — separate validation-path bug; not fixed here.

## Model Used

Claude (Sonnet-class), running inside Paperclip as a claude_local
executor.


## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-06-10 20:53:33 -07:00
..

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