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 skills/greatsumini/cc-system/slash-command-creatornpx skills add greatSumini/cc-system --skill slash-command-creatorgit clone --depth 1 https://github.com/greatSumini/cc-systemWhat 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 | $0.00046 | $0.00688 |
| Opus 5 | $0.00023 | $0.00344 |
| Sonnet 5 | $0.00009 | $0.00138 |
| Haiku 4.5 | $0.00005 | $0.00069 |
Grade A, and why
slash-command-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 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 — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slash Command Creator
Create custom slash commands for Claude Code to automate frequently-used prompts.
Quick Start
Initialize a new command:
scripts/init_command.py <command-name> [--scope project|personal]
Command Structure
Slash commands are Markdown files with optional YAML frontmatter:
---
description: Brief description shown in /help
---
Your prompt instructions here.
$ARGUMENTS
File Locations
| Scope | Path | Shown as |
|---|---|---|
| Project | .claude/commands/ |
(project) |
| Personal | ~/.claude/commands/ |
(user) |
Namespacing
Organize commands in subdirectories:
.claude/commands/frontend/component.md→/componentshows "(project:frontend)"~/.claude/commands/backend/api.md→/apishows "(user:backend)"
Features
Arguments
All arguments - $ARGUMENTS:
Fix issue #$ARGUMENTS following our coding standards
# /fix-issue 123 → "Fix issue #123 following..."
Positional - $1, $2, etc.:
Review PR #$1 with priority $2
# /review 456 high → "Review PR #456 with priority high"
Bash Execution
Execute shell commands with ! prefix (requires allowed-tools in frontmatter):
---
allowed-tools: Bash(git status:*), Bash(git diff:*)
---
Current status: !`git status`
Changes: !`git diff HEAD`
File References
Include file contents with @ prefix:
Review @src/utils/helpers.js for issues.
Compare @$1 with @$2.
Frontmatter Options
| Field | Purpose | Required |
|---|---|---|
description |
Brief description for /help | Yes |
allowed-tools |
Tools the command can use | No |
argument-hint |
Expected arguments hint | No |
model |
Specific model to use | No |
disable-model-invocation |
Prevent SlashCommand tool invocation | No |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 109 lines · 46 tokens per session scan A c7d4e6886e71
slash-command-creator is a skill published in the GitHub repository greatSumini/cc-system (436 stars, last pushed 2mo ago), licensed MIT. It adds 46 tokens to every session and 688 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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