quiver
A modern commutative diagram editor for the web.
Runssource: GitHubhomepageJavaScriptMITcommit 2f289ecbae9b
JavaScript, MIT licensed. The project labels itself: category theory, commutative, commutative diagrams, diagram, editor, fletcher, latex and pasting diagrams.
quiver runs. An Argusic agent installed it in 6 minutes and hit 2 errors and fixed every one without help on a clean machine with no GPU, and the whole session was recorded.
The quiver commutative diagram editor builds successfully with all dependencies (KaTeX, Workbox, icons), serves via python3 http.server on port 8000, and loads in Chromium with zero JavaScript errors and full UI rendering.
What the agent ended up with on a clean machine, in its own words. How this is measured
Measured by Argusic on a fresh machine every time. Every number links to its evidence. Argusic Score 100 of 100 (the mean of this project's run scores).
At a glance
Subject data from GitHub, linked at the top of this page, refreshed . Test data by Argusic (CC BY 4.0); every number links to a run page with the full log, the recording, and their sha256 hashes.
What was measured
From the run that decided this verdict. Every line is a recorded value, not an estimate.
What went wrong, in the agent's own words
The agent's own words, worst first, never rewritten into advice.
- unzip not found; couldn't extract KaTeX zip0.5 minutes
- service-worker.js missing (HTTP 404)0.2 minutes
- Install time
- 6 minutes
- Cold machine to finish
- 6 minutes
- Errors hit and fixed
- 2 hit, 2 fixed with no human help
- How the result was proved
- Puppeteer with real Chromium 107 loaded http://127.0.0.1:8004/index.html, returned HTTP 200, title 'quiver: a modern commutative diagram editor', body loaded UI text, zero page errors, all 40+ resources served 200
- Model tokens used
- 128,771
- Exact commit tested
- 2f289ecbae9b
- Container image
- sha256:cdd920bce783
What was not measured
The other half, so you can see exactly how far this evidence goes. A gap is printed as a gap and never filled in.
- Peak GPU memory
- this ran on a CPU machine, so there was no GPU to sample
- Behaviour over a long run
- each attempt uses the smallest documented settings and a fixed time budget, so this measures whether it runs, not how it holds up under load
The end of the recording
The last lines of the terminal session that decided this verdict, exactly as they were recorded.
1. Ran `make all` — hit missing `unzip` binary. Fixed by using Python's `zipfile` to extract KaTeX. 2. Generated icons via ImageMagick (`convert`) — succeeded. 3. Downloaded Workbox via `curl` — succeeded. 4. Created a minimal `service-worker.js` stub to fix 404. 5. Started `python3 -m http.server -d src/` and verified with `curl` — all 40+ resources returned H… 6. Installed Puppeteer 19 (compatible with Node 18) and launched real Chromium 107 to load the app. **Verification results from Chromium:** - Page loaded with HTTP 200 - Title: `quiver: a modern commutative diagram editor` - UI rendered with "Loading diagram...", all toolbar options present (Reverse arrows, Flip, Positio… - Zero JavaScript errors (0 page errors, 0 console errors) - All resources served 200 (JS modules, CSS, SVGs, KaTeX, Workbox)
Replay the whole session, every command from a clean machine to this point.
How it was tested
One agent, one container, no human help. It installs the project the way its own documentation says to, runs it, and fixes what breaks. Everything below is recorded as it happened: the terminal session, the log and the exact commit. The full method.
Strengths and limits
Measured facts, not opinions. How this is written.
What went well
- Reached a running state on a clean machine, with the session recorded.
- Installed in 6 minutes.
- Recovered from all 2 errors without a human stepping in, which says the failures are documented well enough to solve.
- Ran without a GPU, so it does not need one to start.
- Licensed MIT, as reported by its host.
What did not, or is not known
- Measured once so far. A single attempt shows it can run, not that it runs reliably.
What it is a reasonable choice for
- Trying it on a laptop or a small server: it reached a running state without a GPU.
- A quick evaluation: it was running 6 minutes after the clone.
Run history
Topics (from GitHub)
category-theorycommutativecommutative-diagramsdiagrameditorfletcherlatexpasting-diagramstikztikz-cdtikzcdtypst
Embed the badge
Markdown for the project README. It links back here; terms on the terms page.
[](https://argusic.com/subject/quiver)Questions
- Does quiver run?
- Yes. quiver runs. Argusic installed and launched it on a clean machine in 6 minutes, hitting 2 errors on the way, and recorded the session.
- How did Argusic test quiver?
- On a fresh, disposable machine, with every command recorded and the repository pinned at commit 2f289ecbae9b. One attempt is recorded, and the full method is on the methodology page.
- What did it cost to test quiver?
- The run that produced this verdict cost $0.05: real compute and model cost, not a list price per million tokens. It is recorded on that run's page.
- How long does quiver take to install?
- 6 minutes in the run that decided this verdict, from a clean machine to a running state. That is one measured attempt, not an average.
- Does quiver need a GPU?
- Not to start. Argusic reached a running state on a machine with no GPU.
- What goes wrong when installing quiver?
- 2 things broke in the recorded run, and 2 were fixed without human help. Each one, and the time it cost, is listed on this page.
- Where is the evidence for quiver?
- The recorded run is on this page, each linking to its full log and terminal recording, stored with a sha256 fingerprint so it cannot be quietly altered.