Augur demonstrates moderate definition quality with well-structured tool names and detailed parameter schemas, but suffers from incomplete output schema documentation and missing error handling guidance. All 6 tools follow the verb_noun naming convention (scan_project, check_available_upgrades, analyze_upgrade_impact, generate_migration_plan, fetch_changelog, search_api_usage), which is excellent for LLM intent inference. Parameter schemas are comprehensive with proper types and descriptions (e.g., projectPath with 'Absolute path' constraint, analysisDepth with enum values). However, the server lacks documented return schemas, tools serialize results via jsonEncode() but provide no schema definition for what fields the LLM should expect in responses. Error handling is basic: the callback wraps tool execution in try-catch but returns only 'tool_name failed: $e' with no recovery guidance (pattern:recovery-guide). No tool documents breaking changes, rate limits, or idempotency guarantees. The scope is domain-focused (Flutter/Dart upgrade analysis) and coherent, but several tools exhibit borderline composition issues (analyze_upgrade_impact + generate_migration_plan overlap in concern, both recommending code changes).

• Document output schemas for all 6 tools. For each tool, define the JSON structure LLM will receive: field names, types, and what they contain. Example for scan_project: '{"dependencies": [{"name": string, "currentVersion": string, "constraint": string}], "sdkConstraint": string}'. This enables downstream chaining and prevents LLM guessing.
• Enhance error handling with recovery guidance. Replace generic 'tool_name failed: $e' with categorized, actionable errors. Example: 'projectPath not found at /path/to/project. Verify the path exists and contains pubspec.yaml. If the path is relative, provide an absolute path instead.' for scan_project.
• Split analyze_upgrade_impact and generate_migration_plan into distinct concerns: keep analyze_upgrade_impact for impact assessment only (breaking changes, affected code), and have generate_migration_plan call analyze_upgrade_impact internally if needed. Document when to call each separately.
• Add format constraints to version parameters. For check_available_upgrades 'targetFlutterVersion' and fetch_changelog 'fromVersion'/'toVersion', specify semantic version pattern (e.g., regex '^[0-9]+\.[0-9]+\.[0-9]+' or enum of supported versions).
• Document 'api' parameter syntax for search_api_usage with explicit grammar. Define: 'Format: [packageName.][ClassName.]methodName. Examples: DateTime.parse, flutter_test.expectAsync, or myClass.method. Matches full qualified names and partial names.'
• Add rate limiting and timeout guidance to tool descriptions. Example: 'This tool queries the pub.dev API. Rate limit: 100 requests/minute. Timeout: 30 seconds. If you hit a rate limit, retry after 60 seconds.' Helps agents avoid cascading failures.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry