Report · marked 26 Aug 2026
penpot/penpot
Solid foundations, held back in a few specific places.
Clojure · 59,186 stars · 6,094 files · branch develop
74
/100
B+
Instructions
23/27Whether the repo tells an agent how to behave before it starts guessing. Losing marks on instruction quality.Setup
18/18Whether an agent can install the project and get it running without a human. Full marks.Verification loop
12/25Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy. Losing marks on test command is discoverable and lint and format rules.Context economy
11/20Whether the repo fits in a context window, or fights it. Losing marks on file sizes fit in context and repository weight.Navigability
10/10How quickly anything new can orient itself. Full marks.
Higher is better. Accent marks what is costing you most.
Fix these first
01
Test command is discoverable
Add a `test` script or a `test` target that runs the whole suite with no arguments. The convention is the interface — an agent tries `npm test` and `make test` before it tries reading your CI config.
02
File sizes fit in context
A single file that fills the context window forces an agent to work from fragments, and it will confidently edit code it never saw. Splitting the worst offenders pays for itself immediately.
03
Instruction quality
Worth fixing: it never states a build, test, or run command.
The full marking
Every deduction below names the file or setting it came from.
Instructions 23/27 A
Whether the repo tells an agent how to behave before it starts guessing.
✓Agent instruction file
12/12
AGENTS.md is present, which is the format the most tools read.
✗Instruction quality
8/12
Real instructions, with gaps.
Worth fixing: it never states a build, test, or run command.
6,057 characters, a workable length
uses headings, so an agent can skim it
includes copyable code blocks
✓README as an entry point
3/3
README has a clear getting-started section.
Setup 18/18 A+
Whether an agent can install the project and get it running without a human.
✓Deterministic install
6/6
pnpm-lock.yaml pins the dependency tree.
Found pnpm-lock.yaml
✓Discoverable commands
6/6
Commands are declared where an agent will look for them.
scripts/ directory
✓Environment config
4/4
.env.example documents what the app needs to run.
✓Pinned runtime version
2/2
The language runtime version is pinned.
Found .nvmrc
–Reproducible environment
n/a
Not applicable — a library doesn't need a container to be worked on.
Verification loop 12/25 C+
Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy.
✓Tests exist
8/8
432 test files against 1708 source files.
e.g. backend/test/backend_tests/auth_oidc_test.clj, backend/test/backend_tests/binfile_test.clj, backend/test/backend_tests/bounce_handling_test.clj
✗Test command is discoverable
0/7
There's no obvious way to run the tests. Even if tests exist, an agent won't reliably find the entry point.
Add a `test` script or a `test` target that runs the whole suite with no arguments. The convention is the interface — an agent tries `npm test` and `make test` before it tries reading your CI config.
✓Continuous integration
4/4
26 GitHub Actions workflows define what "passing" means.
✗Lint and format rules
0/3
No linter or formatter config. Style is tribal knowledge, so agent output will drift from yours.
A formatter config is the cheapest way to stop reviewing whitespace in agent diffs. It moves style from opinion to a command.
✗Static type checking
0/3
No static type checking.
A type checker gives an agent an error message instead of a runtime surprise. It's the second-fastest feedback loop after the compiler.
Context economy 11/20 B-
Whether the repo fits in a context window, or fights it.
✓No committed build output
6/6
No generated directories committed.
✓.gitignore hygiene
3/3
.gitignore covers 109 patterns.
✗File sizes fit in context
0/6
8 source files are over 100KB.
A single file that fills the context window forces an agent to work from fragments, and it will confidently edit code it never saw. Splitting the worst offenders pays for itself immediately.
backend/resources/app/assets/swagger-ui-4.18.3.js — 1021KB
render-wasm/src/render.rs — 181KB
frontend/packages/tokenscript/schemas.js — 165KB
✗Repository weight
2/5
About 401MB checked out. Large enough that cloning and searching are both slow.
Large binaries and vendored trees slow every operation an agent performs. Git LFS or a separate assets repo keeps the working tree navigable.
Here is your AGENTS.md
Drafted from what is actually in this repository: the install
command from your lockfile, the commands you already declare, your real directory layout. Anything
marked TODO needs a person. Save it at the root as AGENTS.md.
# AGENTS.md Penpot: The open-source design platform for Product teams that need scalable collaboration. ## Setup ``` pnpm install ``` ## Commands ``` # TODO: nothing declares a build or test command, so an agent has to guess. # This is the single most valuable section of this file. Fill it in. ``` ## Layout - `frontend/` 1004 source files - `plugins/` 222 source files - `backend/` 214 source files - `render-wasm/` 96 source files - `mcp/` 47 source files - `common/` 30 source files ## Conventions - Tests live alongside the code they cover, following `backend/test/backend_tests/auth_oidc_test.clj`. - CI defines what passing means. See `.github/workflows/auto-label.yml`, and keep it green. - TODO: add the two or three conventions a newcomer always gets wrong here. ## Gotchas - `backend/resources/app/assets/swagger-ui-4.18.3.js` is 1021KB. It will not fit comfortably in context, so read it in parts. - Copy `.env.example` before running anything that needs configuration. --- Drafted by agentreadme.com from what is in this repository. Everything marked TODO needs a human. Check it in as AGENTS.md at the root.
Open the raw markdown
or
curl -o AGENTS.md agentreadme.com/draft/penpot/penpot.md
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Think this mark is wrong?
Every deduction above names the file it came from, so this can be settled by looking. If a check missed something, that is a rule worth fixing.