overcast-skill-creator

overcast-skill-creator is a skill for Claude Code from kdr/overcast. It costs 49 tokens per session (695 once invoked), scanned A, original, Apache-2.0.

A guide for creating small, installable Overcast skills for one focused investigation, media-analysis, monitoring, or case-memory workflow.

In plain words
What is it for?
Use it to build workflows that set up a case, gather evidence, record findings, ask questions, create briefs, and export results with citations.
Why use it?
It helps turn a broad Overcast process into a focused reusable skill without copying the full command reference.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the overcast plugin — 35 skills, 1 hook shipped together

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.

agentmods
npx agentmods add skills/kdr/overcast/overcast-skill-creator
Any agent
npx skills add kdr/overcast --skill overcast-skill-creator
Clone the repo
git clone --depth 1 https://github.com/kdr/overcast

Made for: Claude Code.

Or install overcast, the plugin that ships this one along with the rest of its 35 skills, 1 hook.

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 overcast-skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/kdr/overcast/overcast-skill-creator.svg)](https://agentmods.dev/skills/kdr/overcast/overcast-skill-creator)
Your own site
<a href="https://agentmods.dev/skills/kdr/overcast/overcast-skill-creator"><img src="https://agentmods.dev/badge/skills/kdr/overcast/overcast-skill-creator.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 695 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00049 $0.00695
Opus 5 $0.00024 $0.00347
Sonnet 5 $0.00010 $0.00139
Haiku 4.5 $0.00005 $0.00069

Measured 6d ago against content hash 1eefc66b36a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

overcast-skill-creator 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 6d 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.

skills/overcast-skill-creator/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

overcast-skill-creator

Use this when the user wants a focused skill built on Overcast instead of the broad overcast skill. Example requests: "make an Overcast skill for analyzing security camera clips", "create a skill that monitors a target and briefs me", or "turn this Overcast workflow into an installable agent skill".

Reference the broad overcast skill and its overcast/reference/verbs.md man pages for exact flags. Do not duplicate the full verb reference.

Design Rules

  1. Pick one case lifecycle: initialize/setup, gather or sense evidence, add notes/findings, ask/brief, then export.
  2. Choose the minimum verbs needed. Prefer case setup, watch, listen, see, face, scan, capture, monitor, note, finding, ask, and brief only when they serve the workflow.
  3. Preserve citations. Evidence claims should cite record.id plus media.at when a timestamp or range exists.
  4. Prefer ask and brief over raw JSON spelunking for synthesis. Use raw records for verification and exact fields, not as the default reading path.
  5. For large watch content or listen transcripts, use case memory get <record-id> --field <field> --offset <n> --limit <n> rather than head/tail reads of JSONL.
  6. State setup assumptions: overcast doctor, provider credentials, system ffmpeg/ffprobe, tinycloud version, and whether the workflow needs live sources or only local files.

Template

---
name: overcast-<workflow-name>
description: >-
  <One sentence about when an agent should use this focused Overcast workflow.>
---

# overcast-<workflow-name>

Use this skill when <trigger conditions>.

## Quickstart

```bash
overcast doctor --json
overcast case init --json
overcast case setup --target "<target>" --yes --json
overcast <gather-or-sense-verb> <input> --json
overcast ask "<question>" --json
overcast brief --export ./brief.md --json
```

## Evidence Rules

- Cite `record.id` and `media.at` for every media-derived claim.
- Record human observations with `note --ref <record-id> --at <time-range>`.
- Separate observed facts, inferred expected behavior, and open questions.

## Failure Handling

- Run `overcast doctor --json` when a provider or system dependency fails.
- If a record field is large, page it with `case memory get`.
- If a source is unavailable, report the missing source and continue with local
  case evidence.

## Validation

```bash
overcast commands --json
overcast <main-verb> --help
overcast ask "<workflow-specific verification question>" --json
```

Read the full file on GitHub · 83 lines

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. 6d ago First seen · 83 lines · 49 tokens per session scan A 1eefc66b36a4

Subscribe to this mod's changes

overcast-skill-creator is a skill published in the GitHub repository kdr/overcast (16 stars, last pushed 2d ago), licensed Apache-2.0. It adds 49 tokens to every session and 695 once invoked, about $0.0002 per session on Opus 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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