flask

The Python micro framework for building web applications.

Runssource: GitHubhomepagePythonBSD-3-Clausecommit d318b6834711

Python, BSD-3-Clause licensed. The project labels itself: flask, jinja, pallets, python, web framework, werkzeug and wsgi.

flask runs. An Argusic agent installed it in 5 minutes and hit 1 error and fixed every one without help on a clean machine with no GPU, and the whole session was recorded.

Flask 3.2.0.dev0 is fully installed and functional with Python 3.12.3; all 491 unit tests pass, async views supported.

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 88.6 of 100 (the mean of this project's run scores).

At a glance

verdict
Runs
Argusic Score
88.6 / 100
cost of the verifying run
$0.12 (measured)
recorded runs
7
last tested
stars
74,766
forks
16,999
open issues
4
watchers
2,119
size
12 MB
created
last push

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.

Time lost to each failure while testing flask, drawn from the recorded run
Every bar is a failure the agent recorded, with the time it cost. Drawn from this run, not from anywhere else.

What went wrong, in the agent's own words

The agent's own words, worst first, never rewritten into advice.

  • Flask async extra not installed, required for async view tests1 minute
Install time
5 minutes
Cold machine to finish
1 minutes
Errors hit and fixed
1 hit, 1 fixed with no human help
Model tokens used
3,735
Exact commit tested
d318b6834711
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.

How the result was proved
runs before 2026-09-07 did not record the command used to check the result
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.

  -> Bash source venv/bin/activate && python3 -m pytest tests/ -v --tb=short 2>&1 | tail -30
  -> Bash source venv/bin/activate && uv pip install -e ".[async]" 2>&1 | tail -10
  -> Bash source venv/bin/activate && python3 -m pytest tests/ -v --tb=short 2>&1 | tail -20
  -> Bash cat > /tmp/test_app.py << 'EOF' from flask import Flask  app = Flask(__name__)  @app.route
  -> Bash source venv/bin/activate && python3 /tmp/test_app.py
  -> Bash find /work/repo/examples -type f -name "*.py" | head -5
  -> Bash source venv/bin/activate && flask --version
  -> Bash source venv/bin/activate && python3 << 'EOF' # Test importing core flask modules import fl
  -> Bash source venv/bin/activate && python3 -m pytest tests/ -v --tb=line 2>&1 | tail -5
Perfect! The Flask repository is fully functional. All tests pass successfully.
Here's my final report:
  finished  26 steps, 0.12 USD

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 5 minutes.
  • Recovered from all 1 error 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 BSD-3-Clause, as reported by its host.
  • Measured 7 times, so the result is not a one-off.

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 5 minutes after the clone.

Run history

tested byattemptoutcomescorecost USDwhen
Argusic Runner1/3Runs100.000.12
Argusic Runner1/3Runs100.000.01
Argusic Runner1/3Runs100.000.01
Argusic Runner1/3Runs100.000.01
Argusic Runner2/3Runs100.000.15
Argusic Runner1/3Did not run20.000.20
Argusic Runner1/3Runs100.000.19

Topics (from GitHub)

flaskjinjapalletspythonweb-frameworkwerkzeugwsgi

Embed the badge

Markdown for the project README. It links back here; terms on the terms page.

[![Tested by Argusic](https://argusic.com/badge/flask.svg)](https://argusic.com/subject/flask)

Questions

Does flask run?
Yes. flask runs. Argusic installed and launched it on a clean machine in 5 minutes, hitting 1 error on the way, and recorded the session.
How did Argusic test flask?
On a fresh, disposable machine, with every command recorded and the repository pinned at commit d318b6834711. 7 attempts are recorded, and the full method is on the methodology page.
What did it cost to test flask?
The run that produced this verdict cost $0.12: real compute and model cost, not a list price per million tokens. It is recorded on that run's page.
How long does flask take to install?
5 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 flask need a GPU?
Not to start. Argusic reached a running state on a machine with no GPU.
What goes wrong when installing flask?
1 thing broke in the recorded run, and 1 were fixed without human help. Each one, and the time it cost, is listed on this page.
Where is the evidence for flask?
All 7 recorded runs are on this page, each linking to its full log and terminal recording, stored with a sha256 fingerprint so it cannot be quietly altered.

Discussion