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g2zz

open-subagent-mcp

by g2zz
OverviewSchemaRelated ServersScoreDiscussions
Python
Local

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
OPENAI_API_KEYYesAPI key for the OpenAI-compatible API
OPENAI_BASE_URLYesBase URL for the OpenAI-compatible API endpoint
OPENAI_MODEL_NAMEYesModel name to use

Capabilities

Features and capabilities supported by this server

CapabilityDetails
tools
{
  "listChanged": false
}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
subagent_spawnA

Start an Open Subagent MCP run.

agent_type must be "explorer" for read-only exploration or "worker" for writable work. By default, Open Subagent MCP may only access files under cwd. Repository-external paths must be declared in allowed_external_roots and still pass realpath, symlink, and sensitive path checks.

Keep timeout_seconds <= 120 for normal tasks. For larger tasks, increase max_steps first and narrow the search scope. If timeout_seconds > 120 is required, pass explicit_authorizations=["long_running_commands"].

subagent_waitA

Wait for one or more Open Subagent MCP runs.

Results include status, summaries, changed_files, commands_run, command_effects, and rollback_segments so the MCP host can audit what the subagent did before using its answer.

subagent_send_messageA

Send a follow-up message to an existing Open Subagent MCP run.

Each follow-up creates a new rollback segment. Use segment_id with subagent_rollback to undo only the follow-up's effects.

subagent_closeB

Close an Open Subagent MCP run and release runtime state.

subagent_rollbackA

Rollback recorded file changes for an Open Subagent MCP run or segment.

By default this also reverts command side effects that were detected by filesystem scans. The rollback refuses conflicts unless force is true.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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