The server has 5 tools with clear action-verb naming (sf_cache_clear, sf_cache_refresh, etc.), which is good. However, there are substantial gaps in schema rigor, parameter descriptions, and output documentation. Tool descriptions exist but are brief (10-50 chars), below the 50-200 char baseline for LLM-optimized clarity. Most critically: 3 of 5 tools have EMPTY input schemas ({}), violating the schema requirement for parameterized tools. The 2 tools with schemas (sf_set_project_directory, sf_list_roots) lack comprehensive parameter descriptions, e.g., 'directory' parameter description is adequate, but no validation rules (format, min/max length) are stated. Output schemas are NOT documented anywhere; callers cannot infer what fields to expect. Error handling is minimal, tools return success/failure text but do not guide recovery or classify errors (retryable vs fatal). No security annotations (destructiveHint, readOnlyHint) despite clear risk levels (WRITE vs READ_ONLY). The server relies on utility tools ('roots' pattern) which are deprecated in current MCP spec, this is not penalized here (omitting deprecated patterns is correct), but the tool names themselves (sf_list_roots, sf_set_project_directory) reference a deprecated paradigm.

• Add explicit input schemas to sf_cache_clear, sf_cache_refresh, and sf_detect_project_directory, or document why they intentionally accept no parameters (currently ambiguous).
• Document output schemas for all tools. E.g., sf_list_roots should return { roots: Array<{path, name, isDefault, description}>, count: number } to enable chaining.
• Add validation rules to parameter descriptions: 'directory: absolute path (must start with /, min 1 char, max 255 chars, must contain sfdx-project.json file)'.
• Implement structured error responses with classification. E.g., { error: 'invalid_path', code: 'ERR_PATH_NOT_FOUND', message: 'Path does not exist', recovery: 'Verify path and retry or call sf_detect_project_directory' }.
• Add security annotations (destructiveHint, readOnlyHint) to tool definitions in code. E.g., server.tool('sf_cache_clear', ..., { destructiveHint: true }).
• Rename or consolidate tools that reference deprecated 'roots' paradigm. Consider passing project directories as tool parameters instead of stateful root management.
• Expand descriptions to 50-200 chars with WHEN/WHY context. E.g., 'Clear the cached SF command metadata to force a refresh of available commands. Use this after installing new SF CLI plugins to make them discoverable.'
• Add per-tool idempotency guarantees. E.g., 'sf_cache_clear: idempotent, can be called multiple times safely.' or 'sf_set_project_directory: NOT idempotent if isDefault=true, calling twice may change which root is default.'
• For sf_list_roots, add pagination support (limit, offset, cursor) to handle >100 roots gracefully.