next-dev-loop SKILL.md skillA

next-dev-loop from asymmetric-al/core is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add asymmetric-al/core/next-dev-loop@git:20261022.752a38b

Pins git:20261022.752a38b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
asymmetric-al/core
Path
.agents/skills/next-dev-loop/SKILL.md
Versions recorded
3
Latest version
git:20261022.752a38b, committed Oct 22, 2026
First version recorded
Jul 24, 2026
Size
9,227 bytes
Repository stars
370
License
AGPL-3.0

Verify Next.js runtime behavior after editing app code. Use this skill to confirm a change actually works in a running app — not just that it compiles or type-checks. Combines /_next/mcp (Next.js's view) with agent-browser (the browser's view). Requires a running `next dev`.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# next-dev-loop

The edit/verify rhythm during `next dev` — make a change, then
confirm it actually works at runtime, not only that the types or
the build are happy.

You verify through two views of the same running app:

- **`/_next/mcp`** — an HTTP endpoint Next.js exposes about itself.
  Knows framework-specific things: routes, segments, RSC, server
  actions, server logs, and errors as Next.js saw them. Call
  `tools/list` for the current surface.
- **`agent-browser`** — a CLI that drives a real Chrome. Knows
  framework-agnostic browser things: DOM, console, network, React
  fiber, vitals. Before driving it, run `agent-browser skills get core`
  once for the version-matched usage guide — don't guess subcommands
  from memory.

The two views cross-check each other.

## requires

- Next.js **16.3+** with **Turbopack** — `/_next/mcp` plus the
  proactive compile check via `get_compilation_issues`.
- `agent-browser` **>= 0.31.1** — React introspection, worktree-scoped
  `session id`, idempotent `--restore`, and launch flag reconciliation.

These are hard floors, not soft preferences. If anything is missing,
tell the user how to upgrade and stop. Don't fall back to grepping
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add asymmetric-al/core/next-dev-loop@sha256:ca45c937ae77b2dc

The line at the top of this page pins the label git:20261022.752a38b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_eqoq5evij6zwbavh.svg)](https://markdownregistry.com/a/art_eqoq5evij6zwbavh)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Jul 24, 2026 and Oct 22, 2026, about one every 45 days.

versioncommittedcommitsizeaudit
git:20261022.752a38b latest2026-10-22 752a38b 9,227 BA view · diff
git:20260923.15c93482026-09-23 15c9348 8,347 BA view · diff
git:20260724.7a8d89f2026-07-24 7a8d89f 8,174 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9227 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

asymmetric-al/core · 370 stars · license AGPL-3.0 · pushed 2026-11-06 · branch develop

API

GET https://markdownregistry.com/api/v1/artifacts/art_eqoq5evij6zwbavh
GET https://markdownregistry.com/api/v1/resolve?ref=asymmetric-al/core/next-dev-loop
GET https://markdownregistry.com/api/v1/blob/ca45c937ae77b2dc39399ffbe5afbfabcc1862056a62fd50c76342a32e6f8375

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in asymmetric-al/core

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