[BOT ISSUE] stale_metadata: claude-opus-5-5 missing fallback_models for Bedrock/Vertex variants

[github-actions]

Summary

The base claude-opus-5-5 entry (line 8734) is missing its fallback_models array. Compare with claude-opus-5 (line 8754), which correctly lists all Bedrock and Vertex variants:

"fallback_models": [
  "anthropic.claude-opus-5",
  "eu.anthropic.claude-opus-5",
  "global.anthropic.claude-opus-5",
  "publishers/anthropic/models/claude-opus-5",
  "us.anthropic.claude-opus-5"
]

The fallback_models array links the canonical model ID to its provider-specific variants so the proxy can resolve cross-provider routing.

Suggested Change

Add fallback_models to the existing claude-opus-5-5 entry at line 8734:

"claude-opus-5-5": {
  ...existing fields...,
  "fallback_models": [
    "anthropic.claude-opus-5-5",
    "global.anthropic.claude-opus-5-5",
    "us.anthropic.claude-opus-5-5",
    "eu.anthropic.claude-opus-5-5",
    "au.anthropic.claude-opus-5-5",
    "jp.anthropic.claude-opus-5-5",
    "publishers/anthropic/models/claude-opus-5-5"
  ]
}

Verification Checklist

Check	Status	Detail
Existing entry	✅	claude-opus-5-5 is at line 8734 with available_providers: ["anthropic"]
Pattern match	✅	claude-opus-5 (line 8754) has fallback_models listing all Bedrock + Vertex variants; this entry should follow the same pattern
kind = stale_metadata	✅	Modifying an existing entry, not adding a new model ID

Related Issues

• [BOT ISSUE] Bedrock: add missing anthropic.claude-opus-5-5 and primary geo variants #1286 — Adds anthropic.claude-opus-5-5, global.anthropic.claude-opus-5-5, us.anthropic.claude-opus-5-5
• [BOT ISSUE] Bedrock: add missing Claude Opus 5.5 geo variants (eu, au, jp) #1287 — Adds eu.anthropic.claude-opus-5-5, au.anthropic.claude-opus-5-5, jp.anthropic.claude-opus-5-5
• [BOT ISSUE] Vertex: add missing publishers/anthropic/models/claude-opus-5-5 #1289 — Adds publishers/anthropic/models/claude-opus-5-5

This issue should be applied after all variant entries are added.

Local Files Inspected

• packages/proxy/schema/model_list.json — claude-opus-5-5 at line 8734 (no fallback_models); template: claude-opus-5 at line 8754 (has fallback_models)

[github-actions]

Autofix skipped because the issue body/title did not contain parseable bot metadata for a model catalog change.