Report · marked 25 Aug 2026

jaredpalmer/formik

Solid foundations, held back in a few specific places.

TypeScript · 34,331 stars · 313 files · branch main

70 /100 B+

Instructions 1/27Whether the repo tells an agent how to behave before it starts guessing. Losing marks on agent instruction file and instruction quality.Setup 14/14Whether an agent can install the project and get it running without a human. Full marks.Verification loop 22/25Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy. Losing marks on tests exist and static type checking.Context economy 20/20Whether the repo fits in a context window, or fights it. Full marks.Navigability 10/10How quickly anything new can orient itself. Full marks.

Higher is better. Accent marks what is costing you most.

Fix these first

Agent instruction file

Add an AGENTS.md at the root: what the project is, how to install, how to run, how to test, and the two or three conventions a newcomer always gets wrong.

Instruction quality

Instructions earn their keep by naming exact commands. 'Run the tests with `pnpm test`' beats three paragraphs of philosophy.

README as an entry point

Give the README an Install and a Usage heading with real commands under each. Agents pattern-match on those headings.

The full marking

Every deduction below names the file or setting it came from.

Instructions 1/27 F

Whether the repo tells an agent how to behave before it starts guessing.

✗Agent instruction file 0/12

None found. Every agent that opens this repo starts from zero.

Add an AGENTS.md at the root: what the project is, how to install, how to run, how to test, and the two or three conventions a newcomer always gets wrong.

Looked for AGENTS.md, CLAUDE.md, .github/copilot-instructions.md, .cursorrules

✗Instruction quality 0/12

Nothing to judge, since there are no instructions.

Instructions earn their keep by naming exact commands. 'Run the tests with `pnpm test`' beats three paragraphs of philosophy.

✗README as an entry point 1/3

README exists but never explains how to get the thing running.

Give the README an Install and a Usage heading with real commands under each. Agents pattern-match on those headings.

Setup 14/14 A+

Whether an agent can install the project and get it running without a human.

✓Deterministic install 6/6

yarn.lock pins the dependency tree.

Found yarn.lock

✓Discoverable commands 6/6

Commands are declared where an agent will look for them.

package.json scripts (dev, test, build, build:benchmark, build:codesandbox, prepublish…)

scripts/ directory

–Environment config n/a

Not applicable — this reads as a library, with no environment to configure.

✓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 22/25 A

Whether an agent can check its own work. This is the category that most decides whether agent output is trustworthy.

✗Tests exist 6/8

13 test files against 128 source files.

e.g. e2e/basic.test.ts, packages/formik-native/test/blah.test.ts, packages/formik/test/ErrorMessage.test.tsx

✓Test command is discoverable 7/7

An agent can find and run `npm run test`.

✓Continuous integration 4/4

3 GitHub Actions workflows define what "passing" means.

✓Lint and format rules 3/3

.eslintrc.js encodes the house style.

✗Static type checking 2/3

Type checking is configured, but not in strict mode.

Turn on `"strict": true`. Type errors are the fastest feedback an agent gets, and non-strict mode silently discards most of them.

Context economy 20/20 A+

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 27 patterns.

✓File sizes fit in context 6/6

No source file is large enough to crowd out a context window.

✓Repository weight 5/5

About 17.2MB checked out, which is comfortable.

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 — drafted for jaredpalmer/formik

# AGENTS.md

Build forms in React, without the tears 😭 

## Setup

```
yarn install
```

## Commands

```
yarn dev                 # run locally
yarn build               # produce a build
yarn test                # run the test suite, must pass before any commit
yarn format              # format
yarn build:benchmark
yarn build:codesandbox
yarn prepublish
yarn changeset
```

## Layout

- `website/`  66 source files
- `packages/` 26 source files
- `examples/` 25 source files
- `app/`      5 source files
- `scripts/`  3 source files
- `e2e/`      1 source file

## Conventions

- Tests live alongside the code they cover, following `e2e/basic.test.ts`.
- TypeScript is not in strict mode. Turning it on catches a whole class of mistakes before they run.
- CI defines what passing means. See `.github/workflows/ci.yml`, and keep it green.
- TODO: add the two or three conventions a newcomer always gets wrong here.

---

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/jaredpalmer/formik.md

Show the mark

The badge re-checks daily, so it keeps up as the repository changes. Use mark again to force it now.

[![agent ready](https://agentreadme.com/badge/jaredpalmer/formik.svg)](https://agentreadme.com/jaredpalmer/formik)

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All TypeScript repositories

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.

Open an issue, already filled in