known-errors

known-errors is a skill for Claude Code, Codex from 0xsline/OpenChatCut. It costs 18 tokens per session (806 once invoked), scanned A, original, AGPL-3.0.

A troubleshooting guide for failed OpenChatCut tool calls or responses in an unexpected format.

In plain words
What is it for?
Use it after an OpenChatCut tool call fails or produces data with an unexpected structure.
Why use it?
It helps diagnose problems when the video-editing tools do not return the expected result.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it after an OpenChatCut tool call fails or produces data with an unexpected structure.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0xsline/openchatcut/known-errors
About the project

OpenChatCut is an open-source, local-first video editor that combines conversational AI agents with editable projects containing professional multitrack timelines, media, effects, and exports. Creators and developers use it to have agents perform video-editing work while retaining manual control over the project. The catalogue entries provide agent skills and MCP integration for operating the editor.

0xsline/OpenChatCut · 2,535 stars · on GitHub · openchatcut.com

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.

Any agent
npx skills add 0xsline/OpenChatCut --skill known-errors
Clone the repo
git clone --depth 1 https://github.com/0xsline/OpenChatCut

Made for: Claude Code, Codex.

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 known-errors

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xsline/openchatcut/known-errors/github.svg)](https://agentmods.dev/skills/0xsline/openchatcut/known-errors)
Your own site
<a href="https://agentmods.dev/skills/0xsline/openchatcut/known-errors"><img src="https://agentmods.dev/badge/skills/0xsline/openchatcut/known-errors/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for known-errors

Your own site · 80×15
<a href="https://agentmods.dev/skills/0xsline/openchatcut/known-errors"><img src="https://agentmods.dev/badge/skills/0xsline/openchatcut/known-errors.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 806 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 36
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin unknown 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 $0.00018 $0.00806
Opus 5.5 $0.00007 $0.00322
Sonnet 5.5 $0.00004 $0.00161
Haiku 4.5 $0.00002 $0.00081

Measured 1mo ago against content hash 4de4dd5c9345, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

known-errors 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 1mo 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.

src/agent/skills/known-errors/SKILL.md · 56 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago First seen · 56 lines · 18 tokens per session scan A 4de4dd5c9345

Subscribe to this mod's changes

known-errors is a skill published in the GitHub repository 0xsline/OpenChatCut (2,535 stars, last pushed yesterday), licensed AGPL-3.0. It adds 18 tokens to every session and 806 once invoked, about $0.0001 per session on Opus 5.5. 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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