Skip to content

CHANGELOG.md

Latest commit

 

History

History
57 lines (43 loc) · 2.21 KB

CHANGELOG.md

File metadata and controls

57 lines (43 loc) · 2.21 KB

Changelog

[0.3.0] - 2026-01-22

Added

  • Server Instructions Support - Display MCP server instructions in output

    • mcp-cli (list all): Shows first line of instructions per server
    • mcp-cli info <server>: Shows full instructions under "Instructions:" heading

  • Tool Filtering - Restrict tools per server via config

    • allowedTools: Glob patterns for tools to allow (e.g., ["read_*", "list_*"])
    • disabledTools: Glob patterns for tools to exclude (e.g., ["delete_*"])
    • disabledTools takes precedence over allowedTools
    • Filtering applies globally to all CLI operations (info, grep, call)

  • Connection Daemon - Lazy-spawn connection pooling

    • Per-server daemon keeps MCP connections warm
    • 60s idle timeout (configurable via MCP_DAEMON_TIMEOUT)
    • Automatic config hash invalidation
    • MCP_NO_DAEMON=1 to disable

  • 3-Subcommand Architecture - info, grep, call

    • Flexible format support: server tool and server/tool
    • call outputs raw text content (CLI-friendly, pipe to grep/head/etc.)
    • info/grep output human-readable format

  • Improved Error Messages for LLMs

    • AMBIGUOUS_COMMAND: Shows both call and info options
    • UNKNOWN_SUBCOMMAND: Smart mapping (run→call, list→info, search→grep)
    • MISSING_ARGUMENT: Shows available servers list
    • INVALID_JSON: Schema hint with example

  • Advanced Chaining Examples - New documentation section

    • Search and read pipelines with jq
    • Multi-file processing with loops
    • Conditional execution with jq -e
    • Multi-server aggregation
    • Error handling patterns

  • Generate System Instructions Script - scripts/generate-system-instructions.ts

Changed

  • CLI Command Structure

    • mcp-cli (no args) lists all servers
    • mcp-cli info <server> requires a server argument

  • Grep Output Format

    • Output now uses space-separated format: <server> <tool> <description>
    • Descriptions are always shown when available
    • Pattern now matches tool name only (not server name or description)

Removed

  • Backward Compatibility Syntax - mcp-cli server/tool [args] now errors with helpful message
  • --json and --raw options - Output format now automatic based on command