$npx -y skills add Archive228/loopkit --skill tool-restraintDon't over-equip an agent with tools/MCP servers. More tools = more ways to fail and a higher cognitive load. Use when wiring tools or an agent underperforms.
| 1 | # Tool Restraint |
| 2 | Loading an agent with 14 MCP servers "just in case" makes it slower and dumber, not more capable — tool-use agents hit sharp capability cliffs as cognitive load rises. |
| 3 | - Enable **only** the servers the current work actually uses. Remove the rest. |
| 4 | - Prefer official servers for credentialed tools; never install five speculatively. |
| 5 | - Each tool's description eats context on every turn — fewer, sharper tools beat a junk drawer. |
| 6 | - Before adding a write-scoped server, add a hook that logs every call. |
| 7 | If the agent picks the wrong tool or thrashes, the fix is usually fewer tools with clearer descriptions, not a smarter model. |