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.
npx agentmods add commands/runkids/skillshare/extrasgit clone --depth 1 https://github.com/runkids/skillshareWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.04200 |
| Opus 5 | $0.00000 | $0.02100 |
| Sonnet 5 | $0.00000 | $0.00840 |
| Haiku 4.5 | $0.00000 | $0.00420 |
Grade A, and why
extras 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 456 lines — stays where its author put it; the contents beside it link to each section on GitHub.
extras
Manage non-skill resources (rules, commands, prompts, etc.) that are synced alongside skills.
Overview
Extras are additional resource types managed by skillshare — think of them as "skills for non-skill content." Common use cases include syncing AI rules, editor commands, or prompt templates across tools.
Each extra has:
- A name (e.g.,
rules,prompts,commands) - A source directory — configurable via
extras_sourceor per-extrasource, defaults to~/.config/skillshare/extras/<name>/(global) or.skillshare/extras/<name>/(project) - One or more targets where files are synced to
Commands
extras init
Create a new extra resource type.
# Interactive wizard
skillshare extras init
# CLI flags
skillshare extras init <name> --target <path> [--target <path2>] [--mode <mode>]
Options:
| Flag | Description |
|---|---|
--target <path> |
Target directory path (repeatable) |
--mode <mode> |
Sync mode: merge (default), copy, or symlink |
--flatten |
Sync files from subdirectories directly into the target root (cannot be used with symlink mode) |
--source <path> |
Custom source directory for this extra (overrides extras_source and default; global mode only) |
--force |
Overwrite if extra already exists |
--no-tui |
Skip interactive wizard, use CLI flags only |
--project, -p |
Create in project config (.skillshare/) |
--global, -g |
Create in global config |
:::note
--source is only supported in global mode. Project mode always uses .skillshare/extras/<name>/ as the source directory.
:::
Examples:
# Sync rules to Claude and Cursor
skillshare extras init rules --target ~/.claude/rules --target ~/.cursor/rules
# Use a custom source directory
skillshare extras init rules --target ~/.claude/rules --source ~/company-shared/rules
# Overwrite an existing extra with new targets
skillshare extras init rules --target ~/.cursor/rules --force
# Project-scoped extra with copy mode
skillshare extras init prompts --target .claude/prompts --mode copy -p
# Sync agents flat (tools like Claude Code only discover flat files)
skillshare extras init agents --target ~/.claude/agents --flatten
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.
- yesterday First seen · 456 lines · 0 tokens per session scan A 64e4530bf929
extras is a command published in the GitHub repository runkids/skillshare (2,597 stars, last pushed 5d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,200 tokens. 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.
Other commands, from other repositories
constraints
Define and enforce this project's quality bar — interview, sane defaults, CONSTRAINTS.md.
webperf
Run a web performance audit via the web-performance-auditor persona.
spec
Start spec-driven development — write a structured specification before writing code.
plan
Break work into small verifiable tasks with acceptance criteria and dependency ordering.
pm-arch
Scan project structure and generate Mermaid architecture diagrams + flowcharts under .pm/architecture/.
pm-done
Close a todo (TODO-xxx), sync completed.md, refresh overview.