8 tools with complete JSON schemas and descriptions. Naming is domain-specific (bgm_compose, se_gen, jingle_gen) but lacks action-verb clarity, most read as nouns/adjectives rather than imperative verbs. Descriptions are adequate (100-200 chars) but lack WHEN/WHY guidance. Parameters are well-typed with enums for constrained inputs (style, type, waveform). Critical gap: no output schema documentation, LLMs cannot predict what these tools return. No error handling guidance. No security considerations for file I/O (path traversal risk). Composition is sound (each tool has one responsibility), but missing idempotency guarantees and recovery patterns.

• Add output schema to each tool: e.g. bgm_compose returns {"file_path": string, "duration_ms": number, "sample_count": number}. This enables LLMs to chain tools and extract metadata.
• Rename tools with action verbs: 'generate_bgm', 'generate_jingle', 'generate_se', 'synthesize_note', 'synthesize_fm_patch'. Verb-first naming improves LLM intent inference.
• Expand descriptions with WHEN/WHY: 'Use bgm_compose for multi-track loopable background music (15 styles). Use note_synth for simple single-note synthesis. Use fm_patch for retro FM-synth tones.'
• Add error handling guidance: 'If output path is invalid or unwritable, returns error with suggested fallback directory. Validate paths to prevent traversal attacks.'
• Document idempotency: 'Calling with identical seed and parameters produces identical output. Overwrites existing file at output path without warning.'