#ToolDesign
Tool design, not model capability, causes most AI agent failures. Learn design patterns to improve reliability, like single-responsibility tools, tight schemas, and structured error returns. #AIAgent #ToolDesign 🤖🔧
AI Agent Tool Design: What Works and What Doesn’t - MachineLearningMastery.com
In this article, you will learn how tool design — not model capability — is the root cause of most AI agent failures, and what concrete design patterns you can apply to fix it.
machinelearningmastery.com
June 26, 2026 at 6:40 AM
Unboxing the first look at what Fenrir Tools is becoming! 🐺🔧

We've been working behind the scenes to get Fenrir ready for launch, and now we're one step closer.

What do you think of the packaging?

#FenrirTools #LockingPliers #Tools #ToolDesign #Engineering
August 13, 2026 at 6:33 PM
Here's what we changed and why it works.

Traditional locking pliers use a release lever. We replaced it with a push button that works with the natural squeeze of your hand.

Less fumbling. No pinched fingers. Easier one-handed operation.

#FenrirTools #Engineering #ToolDesign
June 18, 2026 at 3:17 PM
6/16 The deeper problem: CheXpert was designed to automate radiologists, not collaborate with them.

It couldn't process medical histories, conversations, diagnostic context that radiologists use.

Automation tool masquerading as expertise replacement.
#ToolDesign
August 25, 2025 at 4:56 AM
A well-designed fixture reduces cycle time, ensures repeatability, and prevents worker fatigue. Unlike standard design, this requires a deep understanding of Design for Manufacturing (DfM).

👉: www.teslamechanicaldesigns.com/mechanical-d...
#ManufacturingEngineering #JigsAndFixtures #ToolDesign
February 2, 2026 at 2:47 PM
法则② 越少越可靠,越细越准

❌ 1个万能tool:do_everything(action, params)
✅ 5个精确tool:search_orders / cancel / invoice / refund / support

Agent是模式匹配器,不是程序员。
给它小而精确的工具,它自己就会组合。

法则③ 错误返回要能"自愈"

return {"error":"order_404", "fix":"try search_orders first to get valid id"}

#ToolDesign #AIAgent
July 1, 2026 at 4:17 PM
法则① 描述决定调用率

Agent选工具不读代码,读description。

❌ "Search orders"
✅ "Search orders by email/date/status. Returns {order_id, total, items, status}. Use when looking up customer orders."

精确定义"何时用"+"返回结构"=成功率翻倍。
每个工具的描述就是Agent的使用手册。

#AgentDev #ToolDesign
July 1, 2026 at 4:17 PM
法则① 描述决定调用率

Agent选工具不读代码,读description。

❌ "Search orders"
✅ "Search orders by email/date/status. Returns {order_id, total, items, status}. Use when looking up customer orders."

精确定义"何时用"+"返回结构"=成功率翻倍。
每个工具的描述就是Agent的使用手册。

#AgentDev #ToolDesign
July 1, 2026 at 4:16 PM
法则① 描述决定调用率

Agent选工具不读代码,读description。

❌ "Search orders"
✅ "Search orders by email/date/status. Returns {order_id, total, items, status}. Use when looking up a specific customer's orders."

精确定义"什么时候用"+"返回什么结构"=成功率翻倍。
每个工具的描述就是Agent的使用手册。

#AgentDev #ToolDesign
July 1, 2026 at 4:16 PM
Agent工具设计正在经历范式转变:从"给人用的API"到"给AI用的接口"。

传统API:字段名缩写、HTTP status code、stack trace错误。
Agent API:自然语言描述、结构化错误JSON、自纠正提示。

给AI设计工具和给人设计工具完全不一样。
三个实战法则👇🧵

#AgentDev #ToolDesign #API
July 1, 2026 at 4:16 PM
2026年MCP生态爆发——数千个server可用。

但质量参差不齐:描述模糊、错误处理缺失、权限过大的server比比皆是。

Agent的工具链需要"供应链审核":
✅ 权限最小化了吗?
✅ 错误输出结构化了吗?
✅ 描述精确到Agent能理解吗?

工具多在增长。工具好在稀缺。

#AIAgent #MCP #ToolDesign
June 24, 2026 at 4:16 PM
Agent工具设计的3个反直觉坑:

① 描述太泛 → Agent猜着调用,成功率暴跌
② 一个万能工具 → 不如五个精确小工具
③ 抛exception → Agent看不懂stack trace,需要结构化错误JSON

工具设计不是写API。是给AI写说明书。

#AIAgent #ToolDesign #DevTips
June 3, 2026 at 11:07 PM
原则② 宁可拆碎,不要万能工具

❌ do_everything(action, params)
✅ search_orders / cancel_order / get_invoice

Agent不是程序员,是pattern matcher。
给它小而清晰的工具,它才能组合出大能力。

#ToolDesign #LLM
May 15, 2026 at 4:12 PM
给AI Agent写工具函数,和写普通API完全不一样。

踩了半年坑才总结出的3条反直觉原则:

#AIAgent #ToolDesign #DevTips
May 15, 2026 at 4:12 PM
原则② 宁可拆碎,不要万能工具

❌ do_everything(action, params)
✅ search_orders / cancel_order / get_invoice

Agent不是程序员,是pattern matcher。
给它小而清晰的工具,它才能组合出大能力。

#ToolDesign #LLM
May 13, 2026 at 9:29 PM
给AI Agent写工具函数,和写普通API完全不一样。

踩了半年坑才总结出的3条反直觉原则:

#AIAgent #ToolDesign #DevTips
May 13, 2026 at 9:29 PM