feat: add model-registry-helper.sh for provider/model registry with periodic sync (t132.2)

[marcusquinn]

Summary

• Add model-registry-helper.sh — a SQLite-backed provider/model registry that syncs from subagent frontmatter, embedded pricing data, and live provider APIs
• Supports 8 commands: sync, list, status, check, suggest, deprecations, diff, export
• Implements normalized name matching to handle cross-provider naming variants (e.g., claude-3-5-haiku vs claude-haiku-3.5)

Task

Closes subtask t132.2 of the Cross-Provider Model Routing plan (t132). Unblocks t132.3 (Model availability checker).

Changes

File	Change
.agents/scripts/model-registry-helper.sh	New script (1122 lines)
.agents/tools/ai-assistants/models/README.md	Added registry docs and updated "Adding New Models" section
.agents/tools/context/model-routing.md	Added Model Registry section
.agents/subagent-index.toon	Registered new script (52 scripts total)

Design Decisions

• SQLite storage — matches existing framework patterns (memory, mail, supervisor DBs)
• Three sync sources — subagent frontmatter for tier mapping, compare-models-helper.sh for pricing, provider APIs for live discovery
• Normalized name matching — strips version numbers, date suffixes, and preview suffixes to match models across different naming conventions
• 24h sync cache — avoids redundant API calls; --force overrides
• Backup-before-sync — uses shared-constants.sh backup_sqlite_db pattern

Testing

All commands tested end-to-end:

• sync --force — 5 tiers synced, 17 models from embedded data
• list / list --provider Anthropic — correct filtering
• status / status --json — health metrics and tier mapping
• check — all 5 subagent tiers match registry entries
• diff — correctly identifies matched vs unmatched models
• suggest / deprecations — working (empty results expected without API keys)
• export --json / export --csv — valid output
• ShellCheck: zero violations

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feature/t132.2

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[github-actions]

🔍 Code Quality Report

�[0;35m[MONITOR]�[0m Code Review Monitoring Report

�[0;34m[INFO]�[0m Latest Quality Status:
SonarCloud: 0 bugs, 0 vulnerabilities, 50 code smells

�[0;34m[INFO]�[0m Recent monitoring activity:
Mon Feb 9 05:10:34 UTC 2026: Code review monitoring started
Mon Feb 9 05:10:35 UTC 2026: SonarCloud - Bugs: 0, Vulnerabilities: 0, Code Smells: 50

📈 Current Quality Metrics

• BUGS: 0
• CODE SMELLS: 50
• VULNERABILITIES: 0

Generated on: Mon Feb 9 05:10:38 UTC 2026

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Generated by AI DevOps Framework Code Review Monitoring

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud