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Agent skill

Linear Local Dev Loop

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

Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace.

MITAuto-check passedBackend & APIs

Install Linear Local Dev Loop

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-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 linear-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/linear-local-dev-loop .claude/skills/linear-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
linear-local-dev-loop
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
488 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace.

  • Works in 6 steps: Inspect the repository's test framework,… → Record minimal redacted success,… → Inject a fake client at the adapter… → …
  • Iterating locally without polluting production Linear data
  • SKILL.md covers Overview, Prerequisites, Tool Discipline and Current Contract, plus 7 more sections
  • Needs API_KEY and ACCESS_TOKEN

What it does

Linear Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace. Use when iterating locally without polluting production Linear data. Trigger with "develop Linear locally", "mock Linear GraphQL", or "test Linear webhooks locally".

Its SKILL.md is about 1.2k 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; live verification requires network access and an approved Linear workspace credential

It sits in Backend & APIs, covering Webhooks and GraphQL. It works with GraphQL. 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 locally without polluting production Linear data
  • With develop Linear locally
  • Mock Linear GraphQL
  • Test Linear webhooks locally

Example prompts

  • “develop Linear locally”
  • “mock Linear GraphQL”
  • “test Linear webhooks locally”
  • “/linear-local-dev-loop”

Requirements

  • A credential in API_KEY
  • A credential in ACCESS_TOKEN
  • Compatibility (from SKILL.md): Designed for Claude Code; live verification requires network access and an approved Linear workspace credential
  • 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. Inspect the repository's test framework, GraphQL client boundary, fixtures, environment loading, and webhook middleware order.
  2. Record minimal redacted success, partial-error, auth-error, throttling, pagination, and webhook fixtures.
  3. Inject a fake client at the adapter boundary; do not mock every SDK model method across the application.
  4. Test raw-body signature verification, duplicate delivery IDs, five-second acknowledgement behavior, and queued processing.
  5. Use an isolated workspace and approved tunnel only for explicit end-to-end checks; label and clean up test records.
  6. Add a protected contract probe that detects schema/package drift without mutating production.

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
    • 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):

    • linear.app

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

  • Credentials

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

    • API_KEY
    • ACCESS_TOKEN

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

  • Compatibility

    Designed for Claude Code; live verification requires network access and an approved Linear workspace credential

    From compatibility in the SKILL.md frontmatter.

Context cost

Linear Local Dev Loop loads about 1.2k tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 76 tokens; SKILL.md has 488 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~76
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2k

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). 488 words, ~1,221 tokens.

Download SKILL.mdSave it as .claude/skills/linear-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
linear-local-dev-loop
description
Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace. Use when iterating locally without polluting production Linear data. Trigger with "develop Linear locally", "mock Linear GraphQL", or "test Linear webhooks locally".
allowed-tools
Read, Glob, Grep, WebFetch, Write, Edit
compatibility
Designed for Claude Code; live verification requires network access and an approved Linear workspace credential
argument-hint
[repository-path] [graphql|sdk|webhook]
version
1.13.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
saas, linear, local-development
model
inherit
effort
high

Linear Local Development Loop

Overview

Keep routine tests deterministic and offline, then use a deliberate read-only or sandbox-workspace probe to detect contract drift.

Prerequisites

  • The target repository, Linear workspace, environment, and accountable owner
  • Current security, privacy, compliance, capacity, and change-control requirements
  • An approved Linear credential only when a bounded live verification is necessary

Tool Discipline

Use Read, Glob, and Grep to inspect code, configuration, and evidence. Use WebFetch only for current first-party Linear documentation and package metadata. Use Write or Edit only for requested implementation with known target files. Never write credentials, customer content, unrestricted environment output, or unredacted GraphQL variables.

Current Contract

  • Webhook delivery requires a publicly accessible HTTPS, non-localhost URL; localhost-only receivers are not a production-equivalent test.
  • Signature verification requires the exact raw request body, so body-parser ordering belongs in local contract tests.
  • GraphQL introspection and official generated SDK types are better schema authorities than hand-written guessed fixtures.

Authentication

Use a personal API key only for owner-controlled scripts, OAuth with PKCE for user-delegated applications, or an enabled client-credentials grant for approved automation. Personal keys use Authorization: <API_KEY>; OAuth tokens use Authorization: Bearer <ACCESS_TOKEN>. Store credentials server-side in an approved secret manager.

Treat app approval, team access, scope changes, credential creation, rotation, revocation, and production access as owner-approved actions.

Instructions

  1. Inspect the repository's test framework, GraphQL client boundary, fixtures, environment loading, and webhook middleware order.
  2. Record minimal redacted success, partial-error, auth-error, throttling, pagination, and webhook fixtures.
  3. Inject a fake client at the adapter boundary; do not mock every SDK model method across the application.
  4. Test raw-body signature verification, duplicate delivery IDs, five-second acknowledgement behavior, and queued processing.
  5. Use an isolated workspace and approved tunnel only for explicit end-to-end checks; label and clean up test records.
  6. Add a protected contract probe that detects schema/package drift without mutating production.
Show full SKILL.md (184 more words)Show less

Approval Boundaries

Do not create, reveal, rotate, or revoke credentials; authorize an OAuth app; change scopes or team access; create, mutate, archive, or delete workspace data; configure or re-enable webhooks; import or export data; change roles, SCIM, or audit streaming; transmit diagnostics; change paid entitlements; or perform another production mutation without explicit approval from the accountable owner. Keep diagnosis read-only unless implementation was requested.

Output

Return the workspace and team scope, auth mode without credential value, files and contracts inspected, exact operation names, evidence collected, validation result, sensitive fields redacted, remaining risk, accountable owner, approval state, and rollback or next action.

Error Handling

ConditionResponse
Fixture contains customer dataReplace it with a synthetic equivalent and purge retained copies.
Signature fails locallyConfirm the raw bytes reach verification before JSON parsing.
Tunnel unavailableRun signed synthetic requests locally and defer the real-delivery proof.
Test reaches productionFail closed unless the protected live-test gate is explicitly enabled.

Examples

Use a compact handoff that makes scope, mutation authority, and verification evidence reviewable.

Input:

text
adapter=graphql; fixtures=synthetic; webhook=raw-body; live=false

Expected handoff:

text
unit=offline; contract=deterministic; production-writes=blocked

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/linear-local-dev-loop of jeremylongshore/tons-of-skills-marketplace.

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

Open the folder on GitHubat commit 23ea8d4

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Linear 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.

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Linear Local Dev Loop this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.2kAutomated safety check: PassMIT
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Ar Io Gateway Operatorar-io/ar-io-node127—~8.2kAutomated safety check: NotesAGPL-3.0
Pii DetectorgoSprinto/compliance-skills133—~1.6kAutomated safety check: PassMIT
Bigcommerce APIqdhenry/Claude-Command-Suite1.3k—~1.5kAutomated safety check: PassNone
Shopify Developmentdavila7/claude-code-templates32k7 repos~2.2kAutomated safety check: PassMIT

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Works with

Categories

Questions about Linear Local Dev Loop

What does Linear Local Dev Loop do?

Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace. Linear Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build a fast Linear integration development loop using fixtures, contract boundaries, and an isolated test workspace.

When should I use Linear Local Dev Loop?

Linear Local Dev Loop fits situations like: iterating locally without polluting production Linear data; with develop Linear locally; mock Linear GraphQL; test Linear webhooks locally.

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

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

How do I install Linear Local Dev Loop in Codex?

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

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

What does Linear Local Dev Loop need to run?

Going by SKILL.md and its folder, Linear Local Dev Loop needs credentials named API_KEY and ACCESS_TOKEN. Our summary lists: A credential in API_KEY; A credential in ACCESS_TOKEN. Its frontmatter pre-approves these tools: Read, Glob, Grep, WebFetch, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; live verification requires network access and an approved Linear workspace credential.

Does Linear Local Dev Loop access the network?

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

Is Linear 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 Linear Local Dev Loop use?

Linear 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 Linear Local Dev Loop use?

About 1.2k tokens (SKILL.md is roughly 4.9k 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 816 tokens, read only when the agent opens those files.

What are the alternatives to Linear Local Dev Loop?

Skills that share tags, products or a category with Linear Local Dev Loop: Saleor GraphQL API Change Checklist (saleor/saleor, 23k stars), Ar Io Gateway Operator (ar-io/ar-io-node, 127 stars), Pii Detector (goSprinto/compliance-skills, 133 stars) and Bigcommerce API (qdhenry/Claude-Command-Suite, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Linear 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.