WORTH TESTING · 25 OCTOBER 2026
HarnessRouter demo: one agent hands a data job to two specialist agents
A 2-minute demo from @_avichawla: a Grok chat assistant uses HarnessRouter to set up a 'Data Analyst' and a 'Dashboard Engineer', each on a different agent and model, which turn a support-ticket spreadsheet into a working web dashboard and then add a new section on request. Honest take: it reads like a promo with no sponsorship disclosure, the run looks idealised, and the '99.8% lower cost' headline isn't shown anywhere in the video; it's the company's own claim. Verdict: the prompting patterns are worth copying with any agent setup; intermediate prompting, no coding needed to apply them. It only has seven genuine takeaways.
Try this
- Have one main agent hand work to specialist sub-agents, one to analyse and one to build. 00:00
- Spell out edge cases, for example that both 'resolved' and 'closed' count as completed. 00:28
- Flag bad data in its own column instead of deleting it (the demo adds a duration_valid column). 00:33
- Have the first agent hand exact JSON stats and a cleaned CSV to the next one. 00:38
- Ask for one self-contained HTML file that loads its libraries from a CDN. 00:43
- Have the main agent check the result: JavaScript errors, and the numbers against the raw data. 00:50
- Ask for changes 'in the existing sessions' so the sub-agents keep their context. 01:25
Timestamps point to the moment in the source video.
Cost
Free to watch on X. Our notes don't cover the cost of the tools shown.
How we knowSteps to try, not a claim that we independently tested every result. Follow the linked sources and check current prices. Our methods & sources ↗