Complete reference for all Massu AI MCP tools with parameters, tier requirements, and descriptions

Tool Reference

Complete reference for all Massu AI MCP tools. Tools are prefixed with your configured toolPrefix (default: massu). Each tool requires a minimum license tier -- Free tools are available to everyone, while Pro, Team, and Enterprise tools require a paid subscription.

License Status Tool

Tool	Tier	Description	Required Params
`massu_license_status`	Free	Show current license tier, expiry, features, and upgrade options	(none)

This tool is always available regardless of tier. See License and Tiers for full tier details.

Knowledge Tools (12)

Tool	Tier	Description	Required Params
`massu_knowledge_search`	Pro	Full-text search across all knowledge types (rules, incidents, patterns, verifications)	`query`: string
`massu_knowledge_rule`	Pro	Store or retrieve a coding rule	`action`: string (`get`\	`set`\	`list`)
`massu_knowledge_incident`	Pro	Record or query a past incident	`action`: string (`get`\	`record`\	`list`)
`massu_knowledge_schema_check`	Pro	Record or retrieve schema validation findings	`action`: string (`get`\	`record`\	`list`)
`massu_knowledge_pattern`	Pro	Capture or retrieve a reusable development pattern	`action`: string (`get`\	`save`\	`list`)
`massu_knowledge_verification`	Pro	Track a verification result	`action`: string (`get`\	`record`\	`list`)
`massu_knowledge_graph`	Pro	Explore cross-references between knowledge entries	`entry_id`: string
`massu_knowledge_command`	Pro	Surface relevant commands for a given context	`context`: string
`massu_knowledge_correct`	Pro	Record or retrieve an AI correction	`action`: string (`get`\	`record`\	`list`)
`massu_knowledge_plan`	Pro	Store or search plan documents	`action`: string (`get`\	`save`\	`search`)
`massu_knowledge_gaps`	Pro	Identify knowledge coverage gaps	(none)
`massu_knowledge_effectiveness`	Pro	Measure knowledge utilization and effectiveness	(none)

Memory Tools (6)

Tool	Tier	Description	Required Params
`massu_memory_search`	Free	Full-text search across past observations	`query`: string
`massu_memory_timeline`	Pro	Chronological context around an observation	`observation_id`: number
`massu_memory_detail`	Pro	Full observation details by IDs	`ids`: number[]
`massu_memory_sessions`	Pro	List recent sessions with summaries	(none)
`massu_memory_failures`	Pro	Get all failed attempts (DO NOT RETRY)	(none)
`massu_memory_ingest`	Free	Manually add an observation	`type`: string, `title`: string

Code Intelligence Tools (7)

Tool	Tier	Description	Required Params
`massu_sync`	Free	Force rebuild all indexes	(none)
`massu_context`	Free	Get file context (rules, imports, domain)	`file`: string
`massu_trpc_map`*	Free	Map tRPC procedures to UI call sites	(none)
`massu_coupling_check`*	Free	Find uncoupled procedures and orphan components	(none)
`massu_impact`	Free	Full impact analysis for a file	`file`: string
`massu_domains`**	Free	Domain boundary information	(none)
`massu_schema`*	Free	Prisma schema cross-reference	(none)

\* Only available when framework.router: trpc \\ Only available when domains is non-empty \\\* Only available when framework.orm: prisma

Feature Registry Tools (6)

Tool	Tier	Description	Required Params
`massu_sentinel_search`	Team	Search feature registry	(none)
`massu_sentinel_detail`	Team	Get full feature details	`feature_key` or `feature_id`
`massu_sentinel_impact`	Team	Pre-deletion impact analysis	`files`: string[]
`massu_sentinel_validate`	Team	Validate all features have living files	(none)
`massu_sentinel_register`	Team	Register or update a feature	`feature_key`: string, `title`: string
`massu_sentinel_parity`	Team	Check feature parity across portals	(none)

Governance Tools (8)

Tool	Tier	Description	Required Params
`massu_audit_log`	Enterprise	Query the audit trail	(none)
`massu_audit_report`	Enterprise	Generate audit report	(none)
`massu_audit_chain`	Enterprise	View complete audit chain for a file	`file_path`: string
`massu_validation_check`	Pro	Validate a file against rules	`file`: string
`massu_validation_report`	Pro	Aggregate validation report	(none)
`massu_adr_list`	Pro	List architecture decision records	(none)
`massu_adr_detail`	Pro	Get full ADR details	`adr_id`: number
`massu_adr_create`	Pro	Create an ADR	`title`: string, `context`: string, `decision`: string

Security Tools (5)

Tool	Tier	Description	Required Params
`massu_security_score`	Enterprise	Scan file for security vulnerabilities	`file`: string
`massu_security_heatmap`	Enterprise	Security risk heatmap across codebase	(none)
`massu_security_trend`	Enterprise	Security score trends over time	(none)
`massu_dep_score`	Enterprise	Dependency risk analysis	`package_name`: string
`massu_dep_alternatives`	Enterprise	Suggest safer dependency alternatives	`package_name`: string

Analytics Tools (8)

Quality (3)

Tool	Tier	Description	Required Params
`massu_quality_score`	Pro	Calculate quality score for session	(none)
`massu_quality_trend`	Pro	Quality scores over time	(none)
`massu_quality_report`	Pro	Comprehensive quality report	(none)

Cost Tracking (3)

Tool	Tier	Description	Required Params
`massu_cost_session`	Pro	Cost breakdown for a session	(none)
`massu_cost_trend`	Pro	Cost trends over time	(none)
`massu_cost_feature`	Pro	Cost attribution by feature	(none)

Prompt Effectiveness (2)

Tool	Tier	Description	Required Params
`massu_prompt_effectiveness`	Pro	Analyze prompt success rates	(none)
`massu_prompt_suggestions`	Pro	Get prompt improvement suggestions	(none)

Observability Tools (4)

Tool	Tier	Description	Required Params
`massu_session_replay`	Pro	Replay past session conversation	`session_id`: string
`massu_prompt_analysis`	Pro	Search and analyze prompts	(none)
`massu_tool_patterns`	Pro	Analyze tool usage patterns	(none)
`massu_session_stats`	Pro	Per-session statistics	(none)

Documentation Tools (2)

Tool	Tier	Description	Required Params
`massu_docs_audit`	Pro	Audit docs freshness against code changes	(none)
`massu_docs_coverage`	Pro	Measure documentation coverage	(none)

Enterprise Tools (5)

Team Knowledge (3)

Tool	Tier	Description	Required Params
`massu_team_search`	Team	Search team knowledge graph	(none)
`massu_team_expertise`	Team	View developer expertise scores	(none)
`massu_team_conflicts`	Team	Detect concurrent edit conflicts	(none)

Regression Detection (2)

Tool	Tier	Description	Required Params
`massu_feature_health`	Free	Feature health scores	(none)
`massu_regression_risk`	Free	Identify regression risk	(none)

Python Intelligence Tools (8)

All Python tools require a Pro license and only appear in Claude Code when python.root is configured in massu.config.yaml. See Python Code Intelligence for full usage examples.

Tool	Tier	Description	Required Params
`massu_py_imports`	Pro	Query Python import graph (who imports what, transitive deps)	(none)
`massu_py_routes`	Pro	List FastAPI route endpoints with auth and coupling status	(none)
`massu_py_coupling`	Pro	Show frontend-to-backend API coupling map	(none)
`massu_py_models`	Pro	List SQLAlchemy models, columns, relationships, and FK graph	(none)
`massu_py_migrations`	Pro	List Alembic migrations, show chain, detect model/migration drift	(none)
`massu_py_domains`	Pro	Check Python package domain boundary violations	(none)
`massu_py_impact`	Pro	Analyze impact of changes to a Python file	`file`: string
`massu_py_context`	Pro	Get full context for a Python file (rules, imports, routes, models, domain)	`file`: string

Input Schema Details

`massu_py_imports`

Parameter	Type	Required	Description
`file`	string	no	Show imports from this file
`imported_by`	string	no	Show files that import this file
`transitive`	boolean	no	Include transitive imports
`depth`	number	no	Max depth for transitive traversal (default: 5)

`massu_py_routes`

Parameter	Type	Required	Description
`method`	string	no	Filter by HTTP method (GET, POST, PUT, DELETE, PATCH)
`path`	string	no	Filter by path prefix
`file`	string	no	Show only routes defined in this file
`unauthenticated`	boolean	no	Show only routes with no auth dependencies
`uncoupled`	boolean	no	Show only routes with no detected frontend callers
`limit`	number	no	Max results to return (default: 500, max: 5000)

`massu_py_coupling`

Parameter	Type	Required	Description
`frontend_file`	string	no	Show only callers from this frontend file
`backend_path`	string	no	Show callers for this backend path

`massu_py_models`

Parameter	Type	Required	Description
`model`	string	no	Show details for a specific model class
`table`	string	no	Look up model by database table name
`fk_graph`	boolean	no	Show full foreign key graph between all tables
`verify_file`	string	no	Check column references in this file against actual schema
`limit`	number	no	Max results to return (default: 500, max: 5000)

`massu_py_migrations`

Parameter	Type	Required	Description
`revision`	string	no	Show details for a specific revision ID
`chain`	boolean	no	Show full migration chain from initial to head
`drift`	boolean	no	Compare SQLAlchemy models vs migration state to detect drift
`limit`	number	no	Max results to return (default: 500, max: 5000)

`massu_py_domains`

Parameter	Type	Required	Description
`file`	string	no	Classify this file into a domain
`crossings`	boolean	no	Show all cross-domain imports and violations
`domain`	string	no	List all files in this domain

`massu_py_impact`

Parameter	Type	Required	Description
`file`	string	yes	Python file path relative to project root

`massu_py_context`

Parameter	Type	Required	Description
`file`	string	yes	Python file path relative to project root

Tool Naming Convention

All tools follow the pattern: {prefix}{category}{action}

Prefix: Configured via toolPrefix (default: massu)
Category: The tool group (memory, sentinel, security, etc.)
Action: What the tool does (search, score, check, etc.)

Example: massu_memory_search = prefix(massu) + category(memory) + action(search)