Reason is the world’s best worker: an agent that takes a task from start to finish on any computer.
The interface is the one you already use. Ask from the Mac app, the terminal, the web or Slack, and Reason hands back a pull request with a recording of what it did.
It can migrate a codebase, fix a slow job, build a dashboard, or turn a Slack thread into a deck and the data behind it.
reasonmachines.com
AI spend dashboard
Build a dashboard of our AI spend per employee, split by model.
Read the billing export
Wrote the spend query
Built the chart
Started the app on its computer
Opened the dashboard
Checked December against the export
ReasonThe dashboard is live: $130,000 per employee this year, across two models. The recording is on the pull request.
Reply, @ for context
Claude Opus 5.5
ReviewDesktopTerminal
localhost:3000/spend
AI spend per employee
Claude Opus 5.5 GPT-5.5$130,000 per employee this year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
December $11,900 $4,900
Reason
Take controlFix the double boost
The double boost stopped working in the last build. Find out why and fix it.
Reproduced it on the Sol 1-2 route
Traced the boost charge to the thrust check
Edited 2 files, added a double boost test
ReasonFixed. The thrust check reset the boost charge every frame, so the second boost never fired. I flew the Sol 1-2 route to check it, and all 8 checks pass.
BOOST ▮▮SOL 1-2412 km/s
0:24 Merged into main
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Claude Opus 5.5
ReviewDesktopTerminal
Fix the double boost #212
Squash and merge
Merged
Open
Merged
fix-double-boost → mainBOOST ▮▮SOL 1-2412 km/s
Spends the boost charge only when a boost fires, so the second boost works again.
Adds a test that boosts twice in a row on every route in Sol 1-2.
src/ship/boost.rs +24−9
src/physics/thrust.rs +11−3
tests/double_boost.rs +38
CHANGELOG.md +2
8 checks passed
reason — ~/acme/ledger
Reason Agent 1.10 ·
auto· this computer~/acme/ledger›Find out why the nightly export is slow and fix it. Split the work up.Starting with the export job and what it queries.
●readsrc/jobs/export.rs●bashrg -n export_rows src●subagent_spawncallers: find every caller of export_rows●subagent_spawnprofile: profile the nightly export●subagent_spawntests: write a regression test for batching●bashcargo bench exportCompiling ledger v0.4.2
Finished bench [optimized] target(s) in 9.81s
Running benches/export.rs
The export ran one query per row. Batching the load fixes it.
●editsrc/db/rows.rs●bashcargo test exporttest export::batches_rows ... ok
test export::keeps_order ... ok
test export_batch::one_query_per_batch ... ok
The export ran one query per row. It now loads each batch in a single query, which the benchmark puts at 14 timesfaster. The new regression test and all export tests pass.
•
Thinking•Running read•Running bash•Running subagent_spawn•Running bash•Thinking•Running edit•Running bash•WritingTip: Ctrl+O shows what each tool printed›Send a follow-upauto· this computer · Speed up the nightly export · 12% used· this computer · Speed up the nightly export · done · 12% used← for sessions · / for commands · ? for shortcuts Search Reason Machines
Priya
Payments outage postmortem is up in #incidents.
Sam
Nice. The retry fix shipped this morning too.
Maya
@Reason can you put together the Q3 reliability review for Thursday? A deck, plus the raw incident data.
👀 1
3 repliesLast reply today at 10:49 AMMessage #engineering
Maya
@Reason can you put together the Q3 reliability review for Thursday? A deck, plus the raw incident data.
3 replies
Reason APP
On it. Pulling July to September from the incident log and the uptime dashboards.
Daniel
Can the payments outage get its own slide? Leadership will ask.
Reason APP
Done: 12 slides, with the payments outage on its own. Uptime was 99.97%, and the data behind every chart is in the two CSVs.
Q3 2026Reliability review
Q3-reliability-review.pptxPowerPoint · 12 slidesincidents-q3.csvCSV · 41 rows
uptime-by-service.csvCSV · 92 rows
🎉 2
Reply…
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