Appendix B — Per-server tool reference

The MCP tool surface by server. Names are the bare tool; clients show them namespaced (mcp__plugin_<server>_<server>__<tool>). For exact arguments, call each server’s own help (squackit.help, fledgling.Help, blq.commands, lackpy.language_spec).

squackit — code intelligence

  • Search/rank: search, search_code, search_content, search_docs, search_chat, search_messages, find, find_names, find_code_ranked

  • Navigate/understand: investigate, call_graph, explore, project_overview, complexity, changed_function_summary, doc_outline

  • Read: read_source, read_context, view, read_doc_section, list_files, file_at_version

  • Diff/history: working_tree_status, file_diff, structural_diff, file_changes, recent_changes, branch_list, tag_list

  • Sessions/chat: sessions, session_detail, browse_sessions, messages, tool_calls, browse_tool_usage

  • Low-level/meta: ast_select_from, pluck, dr_fledgling, fts_stats, help

fledgling — SQL/DuckDB engine

  • Code: FindCode, FindDefinitions, SearchCode, SearchContent, SearchProject, SelectCode, ViewCode, ReadLines, CodeStructure, ExploreProject, InvestigateSymbol

  • Docs: SearchDocs, MDOverview, MDSection

  • Git: GitDiffFile, GitDiffSummary, GitShow, ReviewChanges

  • Chat: ChatSearch, ChatDetail, ChatSessions, ChatToolUsage

  • FTS/meta/SQL: FtsStats, Help, describe, list_tables, query

blq — build-log query

  • Run/inspect: run, exec, status, errors, output, info, inspect, query

  • History/report: history, events, report, diff

  • Commands: commands, register_command, unregister_command

  • CI/sandbox: ci_generate, ci_check, clean, sandbox_info

jetsam — git workflow

  • Read: status, log, diff, show_plan, checks, issues, pr_list, pr_view, pr_comments

  • Mutating (→ confirm): save, sync, start, finish, ship, release, switch, tidy, modify_plan, issue_close, pr_comment, pr_review, cancel

  • Confirm/escape: confirm, git

kibitzer — modes, coaching, policy

  • ChangeToolMode, GetFeedback, GetDocContext

  • (modes: free, implement, test, docs, explore, review)

lackpy — intent→program

  • Generate/run: generate, create, run_program, delegate, validate

  • Kits/toolboxes: kit_list, kit_info, kit_create, toolbox_list

  • Docs/config: language_spec, docs_index, resolve_doc, provider_list, config

agent-riggs — memory (CLI)

  • agent-riggs ingest · agent-riggs ratchet promote|reject|history <key>

  • store: .riggs/store.duckdb (tables: turns, failure_stream, ratchet_decisions)

umwelt — policy (library/CLI)

  • PolicyEngine.from_files(world, stylesheet) → .save(db); .from_db(db); .resolve(type, id, property=, context={"mode":…}), .resolve_all(type, context=), .trace(...)