API Audit
briiirussell/cybersecurity-skills
Audit REST, GraphQL, and RPC APIs against the OWASP API Security Top 10 (2023).
Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence.
Install Linear Common Errors
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errors --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ 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-common-errors .claude/skills/linear-common-errors && rm -rf skills-srcUse ~/.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/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .claude/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errorsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errors --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.curated/linear-common-errors .agents/skills/linear-common-errors && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .agents/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errors --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.curated/linear-common-errors .cursor/skills/linear-common-errors && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .cursor/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jeremylongshore/tons-of-skills-marketplace.git --path skills/.curated/linear-common-errors--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errors --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.curated/linear-common-errors .gemini/skills/linear-common-errors && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .gemini/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errorsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.curated/linear-common-errors .github/skills/linear-common-errors && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .github/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace linear-common-errors --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.curated/linear-common-errors .opencode/skills/linear-common-errors && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "linear-common-errors" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/linear-common-errors into .opencode/skills/linear-common-errors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linear-common-errors", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
linear-common-errors- GitHub stars
- 2.8k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 504 words
- Files
- 2 (incl. references)
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence.
- Works in 6 steps: Capture the operation name, HTTP status,… → Separate authentication, authorization,… → Reproduce with the smallest read-only… → …
- An integration returns partial 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 Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence. Use when an integration returns partial data, authentication failures, rate limits, invalid input, or missing resources. Trigger with "debug Linear GraphQL", "Linear API error", or "why did Linear SDK fail".
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 GraphQL, Rate limiting and Authentication. It works with GraphQL and Linear. 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
- An integration returns partial data
- Authentication failures
- Missing resources
- With debug Linear GraphQL
Example prompts
- “debug Linear GraphQL”
- “Linear API error”
- “why did Linear SDK fail”
- “/linear-common-errors”
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.
- Capture the operation name, HTTP status, GraphQL error code/path, SDK version, and redacted rate headers.
- Separate authentication, authorization, input, not-found, complexity, endpoint-budget, and service-health failures.
- Reproduce with the smallest read-only query using the same auth mode; do not paste tokens or full customer variables.
- For partial data, decide whether the caller must reject the whole response or can use explicitly safe fields.
- For throttling, follow reset metadata, shrink requested fields/pages, and coordinate all workers sharing the user or app budget.
- Return the root-cause evidence, bounded remediation, and a regression assertion.
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:
ReadGlobGrepWebFetchWriteEdit
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_KEYACCESS_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 Common Errors loads about 1.2k tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 79 tokens; SKILL.md has 504 words of instructions outside code blocks.
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). 504 words, ~1,229 tokens.
Download SKILL.mdSave it as
.claude/skills/linear-common-errors/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- linear-common-errors
- description
- Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence. Use when an integration returns partial data, authentication failures, rate limits, invalid input, or missing resources. Trigger with "debug Linear GraphQL", "Linear API error", or "why did Linear SDK fail".
- 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] [redacted-error-or-request-id]
- version
- 1.13.0
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- license
- MIT
- tags
- saas, linear, error-triage
- model
- inherit
- effort
- high
Linear Error Triage
Overview
Classify a failure before changing code or credentials, because Linear can return GraphQL errors with HTTP 200 and throttling errors with HTTP 400.
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
- Always inspect the GraphQL
errorsarray; a response can include partialdataand errors together. - Rate limiting is identified by
extensions.code: RATELIMITEDin an HTTP 400 GraphQL response, not by assuming HTTP 429. - The SDK exposes parsed
LinearErrordetails including query, variables, status, data, raw error, and per-error path/type when available.
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
- Capture the operation name, HTTP status, GraphQL error code/path, SDK version, and redacted rate headers.
- Separate authentication, authorization, input, not-found, complexity, endpoint-budget, and service-health failures.
- Reproduce with the smallest read-only query using the same auth mode; do not paste tokens or full customer variables.
- For partial data, decide whether the caller must reject the whole response or can use explicitly safe fields.
- For throttling, follow reset metadata, shrink requested fields/pages, and coordinate all workers sharing the user or app budget.
- Return the root-cause evidence, bounded remediation, and a regression assertion.
Show full SKILL.md (189 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
| Condition | Response |
|---|---|
HTTP 200 plus errors | Treat it as an application failure unless partial-data handling is explicitly designed. |
HTTP 400 plus RATELIMITED | Honor reset data and reduce request or complexity pressure. |
| Forbidden | Verify team visibility and exact OAuth scope; do not broaden access by default. |
| Unknown schema field | Check introspection, SDK version, and deprecation notices before renaming code. |
Examples
Use a compact handoff that makes scope, mutation authority, and verification evidence reviewable.
Input:
status=200; errors[0].path=issueCreate; sdk=95.0.0; variables=redactedExpected handoff:
class=graphql-application-error; retry=no; regression=payload-error-checkResources
© 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-common-errors of jeremylongshore/tons-of-skills-marketplace.
- SKILL.md
- references/official-docs.md
Open the folder on GitHubat commit 23ea8d4
Compare with similar skills
Linear Common Errors 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Linear Common Errors this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.2k | Automated safety check: Pass | MIT | |
| API Auditbriiirussell/cybersecurity-skills | 413 | — | ~2.8k | Automated safety check: Notes | MIT | |
| Discover APIrand/cc-polymath | 181 | 1 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Domain Webfjrevoredo/mini-diarium | 308 | 1 repos | ~1k | Automated safety check: Pass | MIT | |
| API Connector Builderericrisco/rsc-harness | 167 | — | ~3.6k | Automated safety check: Pass | MIT | |
| Shopify APIMicrock/ordinary-claude-skills | 403 | 1 repos | ~4.3k | Automated safety check: Pass | Custom licence |
Similar skills
Discover API
rand/cc-polymath
Automatically discover API design skills when working with REST APIs, GraphQL schemas, API authentication, OAuth, JWT, rate limiting, API versioning, error handling, or endpoint design.
Domain Web
fjrevoredo/mini-diarium
A skill your agent uses when building web services. An agent skill from fjrevoredo/mini-diarium.
API Connector Builder
ericrisco/rsc-harness
A skill your agent uses when writing a client for someone else's REST or GraphQL API: auth flow choice and token refresh, pagination to exhaustion, retry-with-jitter on transient failures only…
Shopify API
Microck/ordinary-claude-skills
Complete API integration guide for Shopify including GraphQL Admin API, REST Admin API, Storefront API, Ajax API, OAuth authentication, rate limiting, and webhooks.
Hunt API
Encod3d-Sec/TORCH
API attack hunting (REST / GraphQL / gRPC) - BOLA/IDOR, BFLA, mass assignment, excessive data exposure, auth/JWT, introspection + batching, rate-limit abuse.
More from jeremylongshore/tons-of-skills-marketplace
All 3,342 skills in this repoPerforming Security Code Review
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to conduct a security-focused code review using the security-agent plugin.
Analyzing Text With NLP
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to perform natural language processing and text analysis using the nlp-text-analyzer plugin.
Building Neural Networks
jeremylongshore/tons-of-skills-marketplace
Execute this skill allows AI assistant to construct and configure neural network architectures using the neural-network-builder plugin.
Detecting Data Anomalies
jeremylongshore/tons-of-skills-marketplace
Process identify anomalies and outliers in datasets using machine learning algorithms.
Explaining Machine Learning Models
jeremylongshore/tons-of-skills-marketplace
Build this skill enables AI assistant to provide interpretability and explainability for machine learning models.
Optimizing Prompts
jeremylongshore/tons-of-skills-marketplace
Execute this skill optimizes prompts for large language models (llms) to reduce token usage, lower costs, and improve performance.
Related
Categories
Questions about Linear Common Errors
What does Linear Common Errors do?
Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence. Linear Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Diagnose Linear GraphQL and SDK failures from transport, response, and request evidence.
When should I use Linear Common Errors?
Linear Common Errors fits situations like: an integration returns partial data; authentication failures; missing resources; with debug Linear GraphQL.
How do I install Linear Common Errors in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a claude-code`. Or copy the skill folder (skills/.curated/linear-common-errors in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/linear-common-errors in your project. Claude Code loads it when a task matches its description.
How do I install Linear Common Errors in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill linear-common-errors -a codex`. Or copy the skill folder (skills/.curated/linear-common-errors in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/linear-common-errors in your project. Codex loads it when a task matches its description.
Can I use Linear Common Errors 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-common-errors -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-common-errors, .gemini/skills/linear-common-errors, .github/skills/linear-common-errors and .opencode/skills/linear-common-errors in your project.
What does Linear Common Errors need to run?
Going by SKILL.md and its folder, Linear Common Errors 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 Common Errors 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 Common Errors 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 Common Errors use?
Linear Common Errors 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 Common Errors 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 Common Errors?
Skills that share tags, products or a category with Linear Common Errors: API Audit (briiirussell/cybersecurity-skills, 413 stars), Discover API (rand/cc-polymath, 181 stars), Domain Web (fjrevoredo/mini-diarium, 308 stars) and API Connector Builder (ericrisco/rsc-harness, 167 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Linear Common Errors?
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.