mode-manager-mcp

mode-manager-mcp is a Python MCP server for VS Code/Copilot that manages persistent “memory” and “instruction” files (personal, workspace/team, and language-specific). It stores memories as Markdown files with YAML frontmatter and relies on VS Code Copilot chat integration to load the relevant memories on each turn.

Evaluated Mar 30, 2026 (22d ago)
Repo ↗ DevTools mcp vscode copilot memory instruction-management python developer-tools prompt-engineering
⚙ Agent Friendliness
54
/ 100
Can an agent use this?
🔒 Security
40
/ 100
Is it safe for agents?
⚡ Reliability
26
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
55
Documentation
60
Error Messages
0
Auth Simplicity
95
Rate Limits
20

🔒 Security

TLS Enforcement
40
Auth Strength
30
Scope Granularity
20
Dep. Hygiene
55
Secret Handling
60

Likely local/editor-integrated storage (Markdown + YAML frontmatter) with no described auth. This reduces network exposure but increases risk of sensitive data being written to workspace directories. README does not discuss encryption at rest, access controls, sanitization, or threat model for malicious prompt content. Dependency hygiene is unknown from provided data; manifest lists several third-party packages but no vulnerability review is provided.

⚡ Reliability

Uptime/SLA
0
Version Stability
45
Breaking Changes
40
Error Recovery
20
AF Security Reliability

Best When

You want Copilot to have consistent context across conversations while you maintain memory as human-readable files inside your editor/workspace.

Avoid When

You cannot allow local workspace modifications, or you need centrally hosted/managed memory with enterprise-grade access controls and monitoring.

Use Cases

  • Persisting personal coding preferences and reminders for an AI assistant
  • Sharing team onboarding notes, coding conventions, and project best practices within a repo
  • Applying language-specific guidance automatically based on file types
  • Reducing repeated questions by reusing previously captured preferences and decisions

Not For

  • High-assurance or regulated environments requiring strong confidentiality controls beyond local file storage
  • Production systems needing audited APIs with formal contracts (OpenAPI/SDKs) and explicit operational guarantees
  • Workflows that cannot tolerate writing/updating instruction files in VS Code/Copilot directories

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

No authentication mechanism is described in the README/manifest; it appears to run locally as an MCP server configured in VS Code.

Pricing

Free tier: No
Requires CC: No

Open-source (MIT) library; cost is primarily local compute/editor usage rather than an external API/service.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Relies on VS Code/Copilot behavior for loading memories on each turn; agent-side testing may be sensitive to editor integration state.
  • Memory is stored as files; concurrency or repeated writes could lead to duplicates or conflicting updates if the tool logic is not explicitly designed for idempotent updates.

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Scores are editorial opinions as of 2026-03-30.

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