MCP Sidecar
Cross-platform MCP server for managing long-lived background processes from any MCP client
Verdict not yet evaluated for this tool. The hybrid eval runs adversarial cases first; coverage rolls out as the corpus expands (15 of 150 labels to graduation). Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: hybrid eval, four-state verdict, honest limits.
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SIDECAR_MAX_PROCESSESMaximum number of concurrent managed processes (default: 10)
SIDECAR_BUFFER_SIZEOutput buffer size per stream in bytes (default: 1048576)
SIDECAR_KILL_TIMEOUTMilliseconds to wait between graceful and forced termination (default: 5000)
SIDECAR_CLEANUP_AFTERSeconds before exited processes are auto-removed. 0 disables cleanup (default: 1800)
SIDECAR_MAX_OUTPUT_SIZEGlobal cap on bytes returned by the output tool. 0 means unlimited (default: 0)
SIDECAR_ALLOWED_EXECUTABLESComma-separated allowlist of executable names. When set, enables security mode with direct exec (no shell). Unset means security disabled.
SIDECAR_BLOCKED_PATTERNSComma-separated regex patterns to reject in commands. Only applies when security is enabled.
SIDECAR_AUDIT_LOGAudit log destination. 'true' writes to cwd, 'temp' writes to OS temp dir, or a directory path. Unset disables audit logging.
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