Brain Os
UnclaimedLocal-first MCP memory server for operational project state: decisions, blockers, plans, patterns, and next moves.
Install
npx brain-os initSet up this server
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22 of 22 tools
Documented tools (22)
From project documentation. A server handshake does not verify each tool’s description or behavior.
action_guard
Apply built-in guard templates to common high-risk actions before proceeding
audit_log
Read the full mutation history — what changed, when, by whom
context_resolve
Resolve which entity the current work belongs to, from explicit mention / alias / files / lexical signals. Deterministic and confidence-scored — routes known context, never guesses intent.
decision_check
Check a proposed action against active decisions — returns clear/caution/conflict
decision_log
Log a strategic decision with reasoning and alternatives
decision_refresh
Refresh an existing decision: bump reviewdate, append evidence, change status. Metadata only — does not mutate decision content.
decision_review
Review-debt inbox: buckets overdue decisions (still-true / changed / archive / needs-evidence) and recommends an action for each. Read-only — proposes, you confirm. Auto-detects duplicate-stub decisions.
entity_read
Read operational state of one or all tracked entities
entity_update
Update entity state — status, momentum, blockers, next moves
focus_get
Get prioritized recommendations on what to work on
memory_check
Audit memory quality — flags stale data, contradictions, noise
memory_commit
End-of-session commit — save all state changes
pattern_detect
Analyze patterns across all entities
plan_add
Add steps to an existing plan
plan_advance
Complete or skip a step (requires evidence/reason) — auto-promotes next
plan_read
View plan progress and current step
plan_set
Set an ordered plan for an entity — step 1 becomes active nextmove
project_evidence_scan
Read-only scan of a repo's native operating state (STATE.md, FLAGS, HANDOFF, ROADMAP/PLAN/TODO, git activity, dirty files) for human gates, next moves, and do-not-touch — grounds focus in repo reality.
risk_assess
Classify risky actions before execution, including public-release and destructive-operation risks
semantic_recall
Search memory by meaning using natural language
wrap_auto
Non-interactive safety-net wrap: applies low-risk fields and stages high-risk changes for review
wrap_check
Detect whether meaningful state changes have accumulated since the last wrap
Tool change history
FAQ
Questions about Brain Os MCP Server
- How do I connect Brain Os MCP Server to Claude?
- The listing records `npx brain-os init` as its setup step. Run it, then follow the repository's instructions for the client configuration; the listing names Claude Code, Cursor, Windsurf as compatible clients.
- Is Brain Os MCP Server free?
- The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
- What can Brain Os MCP Server do?
- Brain Os MCP Server documents 22 tools to the agent, including action_guard, audit_log, context_resolve. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.