[crxssrazr93]

Summary

Oh My Pi 18 ships five Claude ids the bridge never registered, because
MODEL_IDS_IN_ORDER drops any id it doesn't name:

id	in omp's pi-ai catalog	registered before
claude-opus-5-5	yes	no
claude-opus-5	yes	no
claude-sonnet-5-5	yes	no
claude-haiku-5-5	yes	no
claude-fable-5-1	yes	no

This adds them to MODEL_IDS_IN_ORDER and all three resolvers
(resolveAutoRuntimeModel, resolveForcedOneMRuntimeModel,
resolveForcedTwoHundredKRuntimeModel), newest-first per family so partial matching
resolves short names to the newest model (AskClaude model: "opus" →
claude-opus-5-5).

How the served context windows were verified

Read from the SDK's own result metadata — result.modelUsage[model].contextWindow after a
one-turn query() — on omp 18.13.3 with Claude Code 2.1.312. Not inferred from the
catalog's advertised contextWindow.

model	bare id served	[1m] id served
claude-opus-5-5	n/a¹	n/a¹
claude-opus-5	200K	1M
claude-sonnet-5-5	200K	1M
claude-haiku-5-5	200K	1M
claude-fable-5-1	n/a¹	n/a¹
control: claude-opus-4-8	200K	1M
control: claude-sonnet-5	200K	1M
control: claude-fable-5	200K	1M

¹ Requires a newer CLI than the one bundled with @anthropic-ai/claude-agent-sdk@0.2.141
(2.1.141): claude-opus-5-5 needs 2.1.280+, claude-fable-5-1 needs 2.1.251+. Retested
through a 2.1.312 binary (bare 200K, [1m] 1M for both) via provider.pathToClaudeCodeExecutable.

Auto defaults follow the existing policy: 1M for the Opus/Sonnet flagships, 200K for Haiku
and Fable with a -1m alternate. Haiku 5.5 differs from Haiku 4.5 — it has a working 1M
runtime, so it gets both entries.

Type of change

• New feature

Checklist

• bun run typecheck passes
• bun run test passes
• Context-routing changes include a case in tests/unit-context-window.mjs
• For model-mapping changes, served-window verification noted above

tests/unit-context-window.mjs fixture now carries the five ids plus assertions for the
auto/1M/200K pickers and claudeCodeModelId; the entry-count test moves from 12 to 22. The
per-model duplicate-window check groups by parseVariantId(...).baseId instead of
startsWith, since claude-fable-5 is a prefix of claude-fable-5-1.

Notes

• claude-mythos-5 / claude-mythos-5-1 are in the catalog but the CLI answers
  400 ... may not exist or you may not have access for this account, so they are
  intentionally left out.
• Testing this on omp 18 currently requires Cannot find package '@oh-my-pi/pi-coding-agent' error when installing plugin #5's fix; that's a pre-existing install
  blocker, unrelated to these registrations.

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[virtualritz]

Bump!