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/rahmanef63/si-coder-agent/sc-stripenpx skills add rahmanef63/si-coder-agent --skill sc-stripegit clone --depth 1 https://github.com/rahmanef63/si-coder-agentWrote 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/rahmanef63/si-coder-agent/sc-stripe)<a href="https://agentmods.dev/skills/rahmanef63/si-coder-agent/sc-stripe"><img src="https://agentmods.dev/badge/skills/rahmanef63/si-coder-agent/sc-stripe.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 5.1 | $0.00052 | $0.00564 |
| Opus 5 | $0.00026 | $0.00282 |
| Sonnet 5 | $0.00010 | $0.00113 |
| Haiku 4.5 | $0.00005 | $0.00056 |
Grade A, and why
sc-stripe 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 today.
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.
What it actually says
/sc-stripe — Stripe (STUB)
Status: boilerplate only. No working scripts yet.
Scope when implemented
- Create/update Products + Prices idempotently from a config file
- Register webhook endpoint at
https://api-<domain>/webhook/stripeand capture the signing secret - Generate a restricted API key (least-privilege) for the runtime, distinct from the dashboard key
- Configure the Customer Portal session URL
- Smoke-test with a Stripe test-mode checkout link
Env vars
| Var | Purpose |
|---|---|
STRIPE_SECRET_KEY |
sk_test_... or sk_live_... (server-side) |
STRIPE_PUBLISHABLE_KEY |
pk_test_... or pk_live_... (client-side) |
STRIPE_WEBHOOK_SECRET |
whsec_... — captured after webhook registration |
Suggested file layout
sc-stripe/
├── SKILL.md
└── scripts/
├── products.js # idempotent product/price upsert from config
├── webhook.js # register endpoint, capture whsec
├── portal.js # customer portal config
└── restricted-key.js # least-privilege key for runtime
Implementation notes
- API base:
https://api.stripe.com/v1 - Auth:
Authorization: Bearer <STRIPE_SECRET_KEY>+Stripe-Version: 2024-12-18.acacia - Bodies are
application/x-www-form-urlencoded, NOT JSON. - Idempotency: pass
Idempotency-Key: <uuid>header to avoid duplicate products on retry. - Convex integration: see
sc-convexforpaymentsschema +http.ts/webhook/striperoute example.
What ships with it
1 file 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.
- today Changed · +6 lines 82a0640f8eec
- 5d ago First seen · 45 lines · 52 tokens per session scan A e1ea99da2ee2
sc-stripe is a skill published in the GitHub repository rahmanef63/si-coder-agent (14 stars, last pushed 2d ago), licensed MIT. It adds 52 tokens to every session and 564 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.
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