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Agent skill

Firecrawl Local Dev Loop

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack.

MITAuto-check passedData & Analytics

Install Firecrawl Local Dev Loop

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill firecrawl-local-dev-loop -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace firecrawl-local-dev-loop --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/firecrawl-local-dev-loop .claude/skills/firecrawl-local-dev-loop && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
firecrawl-local-dev-loop
GitHub stars
2.8k
Token cost
~1.1k tokens
SKILL.md length
513 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack.

  • Works in 7 steps: Inspect the application runtime,… → Define typed adapter interfaces for… → Create synthetic fixtures for direct SDK… → …
  • Developing without production data
  • SKILL.md covers Overview, Prerequisites, Current Contract and Authentication, plus 7 more sections
  • Needs FIRECRAWL_API_KEY

What it does

Firecrawl Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack. Use when developing without production data or routine Cloud spend. Trigger with "Firecrawl local dev", "mock Firecrawl", or "self-host Firecrawl locally".

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Designed for Claude Code; Firecrawl Cloud work requires network access

It sits in Data & Analytics, covering Web scraping. It works with Firecrawl. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Developing without production data
  • Routine Cloud spend
  • With Firecrawl local dev
  • Self-host Firecrawl locally

Example prompts

  • “Firecrawl local dev”
  • “mock Firecrawl”
  • “self-host Firecrawl locally”
  • “/firecrawl-local-dev-loop”

Requirements

  • Docker
  • A credential in FIRECRAWL_API_KEY
  • Compatibility (from SKILL.md): Designed for Claude Code; Firecrawl Cloud work requires network access
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Inspect the application runtime, official SDK version, wrapper boundary, test framework, and operations the integration actually uses.
  2. Define typed adapter interfaces for scrape, crawl submission/status, batch, map/search, and any other required methods so tests do not…
  3. Create synthetic fixtures for direct SDK documents, REST envelopes, origin error pages, paginated jobs, throttling, credits, policy…
  4. Run unit and contract tests against fakes by default. Prohibit production keys, real customer URLs, captured bodies, and external network…
  5. When end-to-end behavior is necessary, follow the current official self-host guide at its pinned release on a trusted local network. Do…
  6. Verify readiness separately from one functional /v2/scrape, record unsupported features, and tear down or isolate the evaluation stack…
  7. Keep lockfiles, fixtures, contract pins, and local setup instructions current; add a regression before fixing each discovered defect.

What it can do on your machine

Read from SKILL.md and the folder at commit 23ea8d4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • FIRECRAWL_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code; Firecrawl Cloud work requires network access

    From compatibility in the SKILL.md frontmatter.

Context cost

Firecrawl Local Dev Loop loads about 1.1k tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 82 tokens; SKILL.md has 513 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~82
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit 23ea8d4, republished under its MIT licence (© jeremylongshore). 513 words, ~1,129 tokens.

Download SKILL.mdSave it as .claude/skills/firecrawl-local-dev-loop/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
firecrawl-local-dev-loop
description
Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack. Use when developing without production data or routine Cloud spend. Trigger with "Firecrawl local dev", "mock Firecrawl", or "self-host Firecrawl locally".
allowed-tools
Read, Glob, Grep, Write, Edit
compatibility
Designed for Claude Code; Firecrawl Cloud work requires network access
argument-hint
<repository-path> [mock|self-host]
version
1.12.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, firecrawl, local-development, testing
model
inherit
effort
high

Firecrawl Local Development Loop

Overview

Keep routine development offline and deterministic. Use self-hosting only when behavior must be exercised end to end, and treat the official Compose quickstart as a local evaluation stack.

Prerequisites

  • The target repository or integration path and the requested operator outcome.
  • The source authorization, data classification, and environment policy.
  • Current Firecrawl documentation, credentials only when needed, and an owner for approvals.

Current Contract

The current self-host guide pins a specific verified release, exposes the API on localhost port 3002, and disables database authentication for its first-run baseline. It explicitly lacks production authentication, durable storage, TLS, high availability, and several Cloud capabilities. Its release and Compose contract must be re-read before use.

Authentication

For authenticated Cloud operations, inject FIRECRAWL_API_KEY from an approved secret manager. REST requests use Authorization: Bearer with the key. Never print, commit, transmit, or place a key in a URL. Keyless access is suitable only where the current documentation explicitly allows it and the workload accepts its limits; production workflows should make identity and team ownership explicit.

Instructions

  1. Inspect the application runtime, official SDK version, wrapper boundary, test framework, and operations the integration actually uses.
  2. Define typed adapter interfaces for scrape, crawl submission/status, batch, map/search, and any other required methods so tests do not mock internals.
  3. Create synthetic fixtures for direct SDK documents, REST envelopes, origin error pages, paginated jobs, throttling, credits, policy denial, invalid extraction, and webhook signatures.
  4. Run unit and contract tests against fakes by default. Prohibit production keys, real customer URLs, captured bodies, and external network access.
  5. When end-to-end behavior is necessary, follow the current official self-host guide at its pinned release on a trusted local network. Do not improvise a one-container substitute.
  6. Verify readiness separately from one functional /v2/scrape, record unsupported features, and tear down or isolate the evaluation stack after use.
  7. Keep lockfiles, fixtures, contract pins, and local setup instructions current; add a regression before fixing each discovered defect.
Show full SKILL.md (186 more words)Show less

Tool Discipline

Use Read, Glob, and Grep to inspect code, configuration, tests, and evidence. Use Write/Edit only for approved implementation or documentation changes. Do not call Firecrawl, rotate keys, change account settings, scrape a target, or deploy merely because this skill was invoked.

Approval Boundaries

Require approval before starting Docker services, downloading a new release, using Cloud from local tests, capturing a real page, or retaining self-hosted databases.

Output

Return adapter boundaries, fixture inventory, commands the operator should run, contract pin, self-host capability gaps, test results, network/secret posture, and cleanup state.

Error Handling

  • Fixture drifts from the pinned contract: update through review, not from a live production payload.
  • Self-host stack is reachable outside the trusted host: stop it and correct network controls.
  • A Cloud-only feature is required: use a protected test environment instead of pretending local parity.

Examples

  • "Mock Firecrawl crawl status" adds paginated and terminal synthetic fixtures at the adapter.
  • "Use the local quickstart in production" is rejected because the documented baseline disables critical controls.

Resources

Read official Firecrawl evidence before relying on an endpoint, SDK method, plan limit, price, retention option, or self-hosted release.

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/firecrawl-local-dev-loop of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit 23ea8d4

Compare with similar skills

Firecrawl Local Dev Loop next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Firecrawl Local Dev Loop compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Firecrawl Local Dev Loop this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.1kAutomated safety check: PassMIT
Firecrawl Scrapefirecrawl/skills116—~1.8kAutomated safety check: PassISC
Firecrawl Agentfirecrawl/skills116—~1.2kAutomated safety check: PassISC
Firecrawl Company Directoriesfirecrawl/skills116—~557Automated safety check: PassISC
Firecrawl Competitive Intelfirecrawl/skills116—~604Automated safety check: PassISC
SEO Firecrawlseranking/seo-skills160—~2.3kAutomated safety check: PassMIT

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Works with

Categories

Questions about Firecrawl Local Dev Loop

What does Firecrawl Local Dev Loop do?

Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack. Firecrawl Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build a deterministic Firecrawl development loop with SDK fakes, recorded synthetic contracts, and an optional trusted-network self-hosted stack.

When should I use Firecrawl Local Dev Loop?

Firecrawl Local Dev Loop fits situations like: developing without production data; routine Cloud spend; with Firecrawl local dev; self-host Firecrawl locally.

How do I install Firecrawl Local Dev Loop in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill firecrawl-local-dev-loop -a claude-code`. Or copy the skill folder (skills/.curated/firecrawl-local-dev-loop in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/firecrawl-local-dev-loop in your project. Claude Code loads it when a task matches its description.

How do I install Firecrawl Local Dev Loop in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill firecrawl-local-dev-loop -a codex`. Or copy the skill folder (skills/.curated/firecrawl-local-dev-loop in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/firecrawl-local-dev-loop in your project. Codex loads it when a task matches its description.

Can I use Firecrawl Local Dev Loop in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill firecrawl-local-dev-loop -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/firecrawl-local-dev-loop, .gemini/skills/firecrawl-local-dev-loop, .github/skills/firecrawl-local-dev-loop and .opencode/skills/firecrawl-local-dev-loop in your project.

What does Firecrawl Local Dev Loop need to run?

Going by SKILL.md and its folder, Firecrawl Local Dev Loop needs credentials named FIRECRAWL_API_KEY. Our summary lists: Docker; A credential in FIRECRAWL_API_KEY. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; Firecrawl Cloud work requires network access.

Does Firecrawl Local Dev Loop access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Firecrawl Local Dev Loop safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Firecrawl Local Dev Loop use?

Firecrawl Local Dev Loop is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Firecrawl Local Dev Loop use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 439 tokens, read only when the agent opens those files.

What are the alternatives to Firecrawl Local Dev Loop?

Skills that share tags, products or a category with Firecrawl Local Dev Loop: Firecrawl Scrape (firecrawl/skills, 116 stars), Firecrawl Agent (firecrawl/skills, 116 stars), Firecrawl Company Directories (firecrawl/skills, 116 stars) and Firecrawl Competitive Intel (firecrawl/skills, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Firecrawl Local Dev Loop?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,821 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 8, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.