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 skills add Lonsdale201/wp-agent-skills --skill wc-stripe-webhooksgit clone --depth 1 https://github.com/Lonsdale201/wp-agent-skillsWrote 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/lonsdale201/wp-agent-skills/wc-stripe-webhooks)<a href="https://agentmods.dev/skills/lonsdale201/wp-agent-skills/wc-stripe-webhooks"><img src="https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/wc-stripe-webhooks/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/lonsdale201/wp-agent-skills/wc-stripe-webhooks"><img src="https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/wc-stripe-webhooks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00137 | $0.03129 |
| Opus 5 | $0.00068 | $0.01564 |
| Sonnet 5 | $0.00027 | $0.00626 |
| Haiku 4.5 | $0.00014 | $0.00313 |
Grade A, and why
wc-stripe-webhooks 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 — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WooCommerce Stripe webhooks
Use this when custom code observes Stripe events or diagnoses paid orders stuck in Pending/On hold. Let the gateway own signature verification, order matching, locks, deferred processing, and order transitions.
Endpoint and trust boundary
The plugin endpoint is generated by WC_Stripe_Helper::get_webhook_url():
https://example.com/?wc-api=wc_stripe
The handler runs on woocommerce_api_wc_stripe and accepts POST only. Do not register a second endpoint for the same Stripe events merely to run business logic.
For normal Stripe events it verifies:
- configured live/test webhook secret
Stripe-Signatureshape- HMAC-SHA256 over
timestamp.raw_body - timestamp within five minutes
Never parse php://input, trust metadata.order_id, or update an order before the installed handler validates the request. Agentic Commerce uses the same URL but a separate secret and event family; do not treat its delegated checkout payload as an ordinary order webhook.
Stripe Gateway 10.9.0 updates the stored pending-webhook count only after signature validation succeeds. Do not write health/status counters from an unverified payload in custom webhook code. Webhook timestamps and pending counts are scalar non-negative integer state; 10.9.0 ignores invalid array/object/non-digit values instead of persisting them.
Connected-account binding in 10.9
After signature validation, the gateway compares a Connect event's account or an agentic delegated-checkout event's context with the cached connected Stripe account ID for the active mode. A known mismatch is logged, acknowledged with HTTP 200, and is not processed; it does not update pending/success health state or fire wc_stripe_webhook_received.
The check deliberately fails open when the event carries no account/context or the connected account is unknown. Do not describe the account check as a replacement for signature verification, and do not copy the fail-open policy into a custom multi-account endpoint without an explicit compatibility reason. A custom endpoint that knows its expected account should fail closed before order lookup.
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.
- yesterday Changed · -1 lines 64054330f96a
- 9d ago First seen · 223 lines · 137 tokens per session scan A e9f3ae7e3641
wc-stripe-webhooks is a skill published in the GitHub repository Lonsdale201/wp-agent-skills (22 stars, last pushed 2d ago), licensed MIT. It adds 137 tokens to every session and 3,129 once invoked, about $0.0007 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 2026-09-03.
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