mcptui is an open-source Python TUI for testing, inspecting, and debugging MCP servers right from the terminal. Install: pip install mcptui. It solves the problem of having to edit a config file and restart an app, open the official web Inspector, or burn LLM tokens just to check whether an MCP tool works.
decisionkit is a CLI and MCP server that routes binary/classification/scoring/ranking questions to a dedicated decision API and gets back probabilities instead of prose. Install: npm i -g @adxtya21/decisionkit. It solves the problem of agents burning a full LLM turn on simple classification, with no probability score to automate on.
mcpgawk is an open-source CLI that remembers what each MCP server's tools looked like when you approved them, then blocks any call once a tool has changed. Install: `uv tool install --force mcpgawk`. It solves the problem of an approved MCP server silently rewriting its tools later (a rug-pull) with nobody noticing.
SpecStory CLI is an open-source CLI that wraps terminal coding agents — swap your launch command from claude to specstory run claude and every conversation auto-saves to .specstory/history/. Install: brew tap specstoryai/tap && brew install specstory. It solves the problem of AI coding sessions disappearing the moment you close the terminal, with no way to find or share them later.
mcp-lint is a CLI that connects to an MCP server, reads its tool list, and runs 21 rules covering schema, descriptions, prompt-injection traces, and dangerous capabilities, then outputs a score and an A-F grade. Install: `curl -fsSL https://raw.githubusercontent.com/superintelligenceco/mcp-lint/main/install.sh | sh`. It closes a blind spot MCP servers' own unit tests never cover but a model reads directly: the tool description text itself.
TrustDex is a local-first, zero-runtime-dependency CLI that applies a policy to ALLOW/ASK/BLOCK any MCP server, Skill, or plugin before your agent can see it. Install: git clone, then npm test — no external packages needed. It fixes the default assumption that 'installable means trustworthy' by turning source review into an explicit gate before exposure, not an afterthought.
agentgateway-lint is a static linter for agentgateway config files. It reads the YAML/JSON once, runs a set of security and hygiene rules, and outputs an A-F grade. Install: git clone then python3 -m agentgateway_lint samples/risky.yaml, no dependencies needed. It addresses the gap that agentgateway itself only checks whether a config is well-formed, not whether it's dangerous.
skills is Serverpod's open-source CLI: package authors ship a skills/ directory with their Dart/Flutter package, and users run skills get to auto-install every dependency's Agent Skill into Claude Code, Cursor, Codex, and more. Install: dart pub global activate skills. It addresses the problem of AI assistants not knowing how to use a third-party package without manually pasted docs or hand-written rule files.
ToolHive is Stacklok's open-source MCP server runtime management platform. Its CLI (thv) or Kubernetes Operator runs every MCP server in an isolated container. Install: brew install stacklok/tap/thv. It addresses the problem of MCP servers running directly on your machine with your machine's own credentials and network access.
agent-manager is a terminal UI built on top of tmux that tracks the status of multiple AI coding agent sessions at once. Install: brew install yoanwai/tap/agent-manager. It solves the problem of juggling terminal tabs to figure out which agent is stuck and which one is done.
Cairn is an incident analysis Copilot that connects to your observability stack, deploy records, and runbooks via MCP tool servers. Ask 'why did checkout latency spike at 3 AM?' and get an evidence-backed root-cause hypothesis. Install: `make install && make up` for a local environment. It solves the problem of SREs manually cross-referencing timelines across multiple systems and digging through runbooks during incidents — and remediation actions require human approval before execution by default.
claude-scope is a Claude Code plugin that provides SQLite FTS5 full-text search over your session history. Install: claude plugin marketplace add waazy-w/claude-scope. It solves the dilemma of 'index-based tools go stale, grep-based tools rescan hundreds of MB every time' by using byte-offset incremental sync — each search only reads newly appended bytes, so even text you typed a minute ago is already searchable.
agent-codemode is an open-source CLI/SDK that lets scripts written by Coding Agents call MCP servers you've already authenticated in Claude Code, Cursor, or Windsurf. Install: npm install -g agent-codemode. It solves the problem of agents burning through context on per-step tool calls by batching them into a single script execution (the author's benchmark shows 99.66% token savings).
Phinq is an open-source runtime governance layer for AI agents. It intercepts every tool call and classifies its risk level — reversible operations pass through, irreversible ones (deletions, payments, credential access, bulk operations) pause for human approval. Install: npx @phinq/phinq. It solves the problem of unsupervised agents making irreversible damage with no trustworthy audit trail.