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/doccker/cc-use-exp/payment-callback-safetynpx skills add doccker/cc-use-exp --skill payment-callback-safetygit clone --depth 1 https://github.com/doccker/cc-use-expWrote 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.
[](https://agentmods.dev/skills/doccker/cc-use-exp/payment-callback-safety)<a href="https://agentmods.dev/skills/doccker/cc-use-exp/payment-callback-safety"><img src="https://agentmods.dev/badge/skills/doccker/cc-use-exp/payment-callback-safety.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00053 | $0.02712 |
| Opus 5 | $0.00026 | $0.01356 |
| Sonnet 5 | $0.00011 | $0.00542 |
| Haiku 4.5 | $0.00005 | $0.00271 |
Grade A, and why
payment-callback-safety 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 4d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 4d ago First seen · 314 lines · 53 tokens per session scan A bc44643a1423
payment-callback-safety is a skill published in the GitHub repository doccker/cc-use-exp (1,036 stars, last pushed 9d ago), with no licence file. It adds 53 tokens to every session and 2,712 once invoked, about $0.0003 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.
Other skills, from other repositories
agentic-readiness
Audit and improve repositories for reliable agentic work across Codex and Codex App, Claude Code, and OpenCode. Use when reviewing AGENTS.md or CLAUDE.md quality and discovery, instruction routing in monorepos or meta-repos, agent settings, MCP configuration, skills, subagents, context budgets, or repository…
payment-integration
PCI DSS compliance, payment gateway integration, tokenization, webhook reliability, idempotency, fraud prevention, and subscription billing.
paid-ads
When the user wants help with paid advertising on Google Ads, Meta, LinkedIn, or Twitter/X — 'PPC,' 'paid media,' 'ROAS,' 'CPA,' 'retargeting,' 'audience targeting,' 'ad budget,' 'should I run ads.' Covers campaign strategy, targeting, bidding, and optimization. For bulk ad creative, see ad-creative. For landing…
subscription-billing
Use when integrating subscription billing, handling Stripe webhooks, implementing trial logic, managing upgrades/downgrades, or building dunning flows.
antigravity-cli
Delegate heavy, multi-step, or specialized tasks to Google's Antigravity CLI agents. Use when a task would benefit from: (1) deep multi-file codebase analysis across many files, (2) web research with Google Search grounding, (3) image generation or visual assets, (4) a second AI perspective for code review or…
churn-prevention
When the user wants to reduce churn or build retention systems — 'cancel flow,' 'save offer,' 'dunning,' 'failed payment recovery,' 'win-back,' 'exit survey,' 'pause subscription,' 'involuntary churn,' 'customers are leaving.' For post-cancel win-back sequences, see email-sequence. For in-app upgrade paywalls, see…