backpressured-config

backpressured-config is a skill for Claude Code, Codex from lucasfcosta/backpressured. It costs 60 tokens per session (3,906 once invoked), scanned A, original, MIT.

A setup workflow for a project's backpressure checks, where backpressure means requiring verification before work is considered complete. It detects project commands, creates or updates `BACKPRESSURE.md`, verifies Playwright, and installs the needed MCP servers.

In plain words
What is it for?
Use it only when explicitly invoking `/backpressured:config` to configure a project, confirm its check and run commands, set up Playwright, and register optional MCP servers in `.mcp.json`.
Why use it?
It gives the later backpressure loop reliable project-specific instructions for linting, testing, running, browser checks, and other verification. It also makes the required tool connections available.

Skill for Claude CodeCodex

Part of the backpressured plugin — 9 skills, 1 agent, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/lucasfcosta/backpressured/config
Any agent
npx skills add lucasfcosta/backpressured --skill config
Clone the repo
git clone --depth 1 https://github.com/lucasfcosta/backpressured

Made for: Claude Code, Codex.

Or install backpressured, the plugin that ships this one along with the rest of its 9 skills, 1 agent, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for backpressured-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/lucasfcosta/backpressured/config.svg)](https://agentmods.dev/skills/lucasfcosta/backpressured/config)
Your own site
<a href="https://agentmods.dev/skills/lucasfcosta/backpressured/config"><img src="https://agentmods.dev/badge/skills/lucasfcosta/backpressured/config.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,906 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.03906
Opus 5 $0.00030 $0.01953
Sonnet 5 $0.00012 $0.00781
Haiku 4.5 $0.00006 $0.00391

Measured 5d ago against content hash b9bf62773360, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

backpressured-config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/config/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Backpressured — Config

Overview

This is the setup step for the backpressure loop, not the loop itself. Its job is to produce a good BACKPRESSURE.md (the file the [[backpressured]] loop reads as authoritative project customization) and to make sure the MCP servers that loop relies on are installed and healthy.

Run only when the user types /backpressured:config. Do not start it from a /goal, a "backpressure" mention, or your own initiative — that is what disable-model-invocation enforces, and you must honor it.

You detect, then confirm — never silently guess and write. The user owns every value that lands in BACKPRESSURE.md.

What you produce

  1. A BACKPRESSURE.md at the project root (created, or edited if one exists).
  2. A verified Playwright MCP, plus any auxiliary MCP servers the user opts into, registered in the project's .mcp.json.

Keep the user oriented

This is an interactive setup, so the user should always know what you're doing and why — but don't make them read your work. Give one short, high-level note per phase, framed as conclusions, not process:

  • Do: "Scanning the project to find its lint, test, and run commands…" · "Found it — tests run with pnpm test, the app starts via docker compose up. Confirm or correct each below." · "Setting up the Linear MCP — you'll finish sign-in with /mcp after."
  • Don't: paste raw file contents, list every path you grepped, narrate each tool call, or think out loud. Report what you concluded, not how you searched.
  • Keep secrets, .env contents, and long command output out of the chat — refer to them, never echo them.
  • Present findings as a short, confirmable summary and ask in plain language; when you take an action (install an MCP, write the file), say what you did in one line.

Step 1 — Create or edit?

Check for BACKPRESSURE.md at the project root.

  • Absent → create mode: run detection (Step 2) and build the file from scratch.
  • Present → edit mode (this is also how you "refresh"): read it, summarize back to the user what it currently says, and ask what they want to change. Also re-run detection and the project survey to surface anything new since last time — added scripts, new CI jobs or hooks, new project skills, MCP servers — and offer those as additions. Then edit in place: change only what's new or what the user asks for, and never clobber sections they already approved.

Read the full file on GitHub · 160 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 160 lines · 60 tokens per session scan A b9bf62773360

Subscribe to this mod's changes

backpressured-config is a skill published in the GitHub repository lucasfcosta/backpressured (63 stars, last pushed 3mo ago), licensed MIT. It adds 60 tokens to every session and 3,906 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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