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Mentioning your own Claude Code or Codex agent shows a gauge in the composer. Its popover is an effort slider with the model name in the slider's tab; the name opens a compact menu of the agent's models. The pick rides on that message as `model` and `effort` tags for that agent, and the host honors them only from the owner and only for listed models and levels. - Codex passes the pick to `turn/start` for that turn only. - Claude Code lists models from `initialize`, sends `set_model` and `apply_flag_settings` ahead of the picked turn, and restores its own on the next unpicked one. - The slider opens at the effort an unpicked run uses (Claude Code's session effort, Codex's configured effort or the model's default); moving back to it is no pick. - A configured Codex model its CLI does not list keeps the picker, with the listed models still pickable. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Squashed-from: baxen/model Squashed-head: 053cee0dba93bb946f544c0c87804ceee90a49ef Signed-off-by: Bradley Axen <baxen@squareup.com> Co-authored-by: Codex <noreply@openai.com>
This was referenced Oct 11, 2026
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Mentioning your own Claude Code or Codex agent exposes a model/effort control for its next run. The control appears immediately while discovery fills in a loading state. Choices are sent as owner-scoped message tags; an unpicked turn returns to the agent defaults, and unsupported model/effort choices are rejected by the existing service/runtime boundaries.
The picker uses the existing IconButton, Menu and Popover owners with the effort slider. Codex discovery reuses #852’s shared server. Claude discovery reads an existing session or uses a temporary process that is released after reading; it never assigns the shared warm spare to an agent merely to inspect settings. Cached own-model metadata survives a first-turn override.
Stack: #838 → #852 → session viewer (
baxen/session-debug) → this PR → metadata → adoption → v1 retirement. Base isbaxen/session-debug; review only this layer. The complete stack is mirrored tobaxen/nextfor human testing.Validation: 124 runtime/hook tests passed, 268 composer tests passed, TypeScript passed. Independent integration review found two lifecycle/default-discovery defects; both were fixed with regressions. Manual automated-browser harness exercised pending → ready, keyboard focus, slider changes and popup bounds in Chromium and WebKit, both themes, narrow/wide widths and enlarged text (12 combinations). No permanent browser cases added; pending-state assertions use held promises in the existing component tests. Native and human acceptance of the combined stack remain pending.
Stack index: #838 → #852 → #855 → #856 → #857 → #858 → #859. Local
baxen/nextat7a645d346has the exact same tracked tree as the complete tip261db4c78. Its temporary integration commit preserves fast-forward ancestry from the existing squashed green history. All newly opened PRs are drafts; native human acceptance is pending.