I wrote both up on the issue and asked two questions instead of proposing a plan: one mesh or two? Two-way coupling or one-way?
Part 2: how short replies from the maintainer steered 16 merged PRs.
The issue:
https://t.co/AM04pBGKUk
Issue #3 in graph_weather was opened in Feb 2022. When I picked it up in May 2026, it was still open.
Part 1 of 5 on my open-source weather ML work: what I read before writing a line of code.
In the code: to let a region move, the encoder's graph has to rebuild whenever the region's coordinates change between batches.
Two designs: one mesh refined over the region, or a second regional model fed by the global one at its edges.
Two AI subagents burned 250,000+ tokens each trying to write my benchmark. They banked zero questions.
First Principles Log #09 of my climate-risk agent, built in public:
After the fixes: 0 false answers, and Recall@3 at 87% on the 70 answerable questions.
Still refused: 21 of the 70 it should answer.
How do you chase false refusals without tuning to your held-out set?
Built SplitSmart for #KiroUniversity: a group expense splitter usable from the browser or any AI agent via its own MCP server. Specs, hooks, PBT, powers and custom agents.
Repo: https://t.co/esw3oY5fCL
Demo: https://t.co/Go8rrmhSTv
@kirodotdev#BuildWithKiro
The unglamorous fix: 300 parametric bootstrap refits took 16.0s cold.
Warm-starting Nelder-Mead from the parent MLE parameters dropped it to 10.5s in 10 lines of Python.
Full post + repo:
Blog: https://t.co/1dboUya6FK
Code: https://t.co/o9G6GsXnoD
Berlin: +0.76 Β°C / decade warming (p < 0.0001).
Delhi: p = 0.56.
Ran 60 years of daily extremes through our climate agent.
It switched Berlin to a drifting trend, but refused to claim Delhi is warming.
Why statistical refusal is our most honest engineering choice:
Why did Delhi return p = 0.56?
In South Asia, regional aerosol pollution dampens observational surface warming in daily station records.
The code didn't know atmospheric physics. The likelihood-ratio test simply honored the data instead of hallucinating a narrative.