Coding Agents Suck at Tools (opens in new tab)
Open up the source code of any agent framework, harness, etc. Hermes, Copilot, Pi, Opencode or whatever. You will find tools, tools everywhere. Examples: These are bash hooks, file viewers, file editors, greps, questions, tasks, web search. Your harness is a loop, and on each loop, all these tools and their individual instructions are injected in the context. That is why initial request using opencode is 10k tokens for no reason. Do we have problems with tools? Yes, and a lot. Some tools just...
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