Coding agent companies
Startups building AI coding agents and their competitive dynamics. Every AI Coding Weekly story on coding agent companies, newest first. 9 stories since October 2026.
- One phone prompt rewrote opencode2, dax says it cost $500
The same week, Prime Intellect says a swarm of over 2,000 agents spent two weeks rewriting its own agent in Rust.
- Pocock wants /retro to turn repeated tasks into CLIs
Fewer tokens and fewer hallucinations, says Pocock. One reply says the risk is a script that quietly fails.
- Pocock, never start with /wayfinder, one-shot the tiny diffs
His rule for picking between a planning session, a full map and just letting the agent write the code comes down to expected diff size.
- Pocock's prompt of the day asks the agent what it wanted to ask
A one line prompt for the moment an agent has been working alone for hours.
- dax says agents keep accidentally undoing functionality
Nothing in a repo records that you rejected solutions one through four and picked five.
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- Theo ships tsc-rs, a Rust TypeScript compiler he never read
Five months of agent work, two token bills that differ by a factor of twenty, and zero lines of human review.
- Pocock's prompt rewrites AGENTS.md across three subagents
One prompt, three escalating rewrites of your agent instructions file, and one PR to compare them in.
- T3 Code adds cross-provider delegation and native subagents
One pull request brings child threads, mid-thread model switching and an ACP registry for Devin, Cline, Kimi and Droid.
- Factory accuses Cognition of prying, both deny it
A board dispute between two coding agent companies is being argued on X instead of behind closed doors.
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