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Agent skill

Attio Local Dev Loop

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

Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts.

MITAuto-check passedTesting & QA

Install Attio Local Dev Loop

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill attio-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 attio-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/attio-local-dev-loop .claude/skills/attio-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
attio-local-dev-loop
GitHub stars
2.8k
Token cost
~940 tokens
SKILL.md length
363 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts.

  • Works in 6 steps: Locate the Attio client boundary,… → Define sanitized fixtures for success,… → Add a local configuration guard that… → …
  • Iterating on Attio mappings
  • SKILL.md covers Overview, Prerequisites, Tool Discipline and Current Contract, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Attio Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts. Use when iterating on Attio mappings or API behavior. Trigger with "Attio local development", "Attio dev loop", or "test Attio locally".

Its SKILL.md is about 940 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

It sits in Testing & QA. 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

  • Iterating on Attio mappings
  • With Attio local development
  • Test Attio locally

Example prompts

  • “Attio local development”
  • “Attio dev loop”
  • “test Attio locally”
  • “/attio-local-dev-loop”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, WebFetch, Write, Edit

Workflow steps

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

  1. Locate the Attio client boundary, mappings, retry policy, and existing fixture conventions.
  2. Define sanitized fixtures for success, validation failure, authorization failure, throttling, and pagination termination.
  3. Add a local configuration guard that identifies the workspace and disables writes by default.
  4. Run the smallest offline test while editing mappings or response normalization.
  5. When live behavior is necessary, display the workspace and disposable target before enabling one bounded operation.
  6. Record created resource IDs in the cleanup ledger, clean them up after review, and verify absence.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. 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
    • WebFetch
    • 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

    Links to these hosts (documentation or services it may open):

    • docs.attio.com

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

  • Credentials

    Names no API keys, tokens, secrets or passwords.

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

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Attio Local Dev Loop loads about 940 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 78 tokens; SKILL.md has 363 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~78
When it runs · the whole SKILL.md, loaded when a task matches
~940
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.5k

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 cfae287, republished under its MIT licence (© jeremylongshore). 363 words, ~940 tokens.

Download SKILL.mdSave it as .claude/skills/attio-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
attio-local-dev-loop
description
Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts. Use when iterating on Attio mappings or API behavior. Trigger with "Attio local development", "Attio dev loop", or "test Attio locally".
allowed-tools
Read, Glob, Grep, WebFetch, Write, Edit
compatibility
Designed for Claude Code
argument-hint
[repository-path] [workspace-alias]
version
1.8.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
saas, attio, development
model
inherit
effort
medium

Attio Local Development Loop

Overview

This skill makes local iteration fast without turning a shared CRM into a test fixture. Offline contracts are the default; live writes are explicit and disposable.

Prerequisites

  • A named repository and test runner
  • Sanitized success and error fixtures
  • A development Attio workspace or approved test boundary
  • A cleanup ledger for any live records or entries

Tool Discipline

Use Read, Glob, and Grep to inspect environment loading, client boundaries, fixtures, and tests. Use WebFetch only for current official Attio documentation. Use Write or Edit after confirming the repository path and test-data policy.

Current Contract

  • Keep offline request/response contracts separate from live integration tests.
  • Never copy production CRM payloads into fixtures.
  • Guard live mutation behind an explicit switch and exact workspace allowlist.
  • Pagination fixtures must match the selected endpoint's offset or cursor contract.

Authentication

Use a least-privilege development workspace token from local secret injection. Do not place the token in a committed environment file, fixture, command transcript, or snapshot.

Instructions

  1. Locate the Attio client boundary, mappings, retry policy, and existing fixture conventions.
  2. Define sanitized fixtures for success, validation failure, authorization failure, throttling, and pagination termination.
  3. Add a local configuration guard that identifies the workspace and disables writes by default.
  4. Run the smallest offline test while editing mappings or response normalization.
  5. When live behavior is necessary, display the workspace and disposable target before enabling one bounded operation.
  6. Record created resource IDs in the cleanup ledger, clean them up after review, and verify absence.
Show full SKILL.md (112 more words)Show less

Approval Boundaries

Live writes, schema changes, bulk operations, and cleanup deletes require an approved non-production target. If workspace identity cannot be proved, remain offline.

Output

Return the fixture matrix, local commands, workspace guard, offline results, live-test disposition, created-resource ledger, and cleanup evidence.

Error Handling

ConditionResponse
Fixture contains real CRM dataRemove and regenerate it from synthetic values.
Workspace allowlist failsKeep writes disabled.
Live response driftsUpdate the contract deliberately after documentation review.
Cleanup failsStop further writes and report exact disposable IDs.

Examples

Input:

text
mode=offline-first; workspace=development; live-writes=disabled

Expected handoff:

text
fixtures=pass; guard=pass; live-test=not-needed; leaked-data=0

This result demonstrates a repeatable development cycle without production data or mutations.

Resources

© 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/attio-local-dev-loop of jeremylongshore/tons-of-skills-marketplace.

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

Open the folder on GitHubat commit cfae287

Compare with similar skills

Attio 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.

Attio Local Dev Loop compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Attio Local Dev Loop this skilljeremylongshore/tons-of-skills-marketplace2.8k—~940Automated safety check: PassMIT
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Diagnosing Bugsfossasia/eventyay-interpretation1.6k32 repos~2.1kAutomated safety check: PassApache-2.0
TDDpietheinstrengholt/rssmonster56430 repos~906Automated safety check: PassMIT
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph11211 repos~2.4kAutomated safety check: PassNone
TDDsanity-io/sanity6.4k20 repos~1kAutomated safety check: PassMIT

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Categories

Questions about Attio Local Dev Loop

What does Attio Local Dev Loop do?

Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts. Attio Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Establish a repeatable local Attio development loop with sanitized fixtures, a non-production workspace, explicit mutation switches, and cleanup receipts.

When should I use Attio Local Dev Loop?

Attio Local Dev Loop fits situations like: iterating on Attio mappings; with Attio local development; test Attio locally.

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

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

How do I install Attio Local Dev Loop in Codex?

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

Can I use Attio 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 attio-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/attio-local-dev-loop, .gemini/skills/attio-local-dev-loop, .github/skills/attio-local-dev-loop and .opencode/skills/attio-local-dev-loop in your project.

What does Attio Local Dev Loop need to run?

SKILL.md names no scripts, command-line tools or credentials: Attio Local Dev Loop is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, WebFetch, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.

Does Attio Local Dev Loop access the network?

SKILL.md names 1 domain. As links in the text: docs.attio.com. This is read from the text; nothing was executed.

Is Attio 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 Attio Local Dev Loop use?

Attio 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 Attio Local Dev Loop use?

About 940 tokens (SKILL.md is roughly 3.8k 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 528 tokens, read only when the agent opens those files.

What are the alternatives to Attio Local Dev Loop?

Skills that share tags, products or a category with Attio Local Dev Loop: Web Application Testing (anthropics/skills, 180k stars), Diagnosing Bugs (fossasia/eventyay-interpretation, 1.6k stars), TDD (pietheinstrengholt/rssmonster, 564 stars) and TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Attio Local Dev Loop?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 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.