Borrowing it
Nothing to install: this file belongs to solana-foundation/solana-developer-platform. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/solana-foundation/solana-developer-platform/main/.agents/skills/integrate-webhook/SKILL.mdgit clone --depth 1 https://github.com/solana-foundation/solana-developer-platformWrote 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/solana-foundation/solana-developer-platform/integrate-webhook)<a href="https://agentmods.dev/skills/solana-foundation/solana-developer-platform/integrate-webhook"><img src="https://agentmods.dev/badge/skills/solana-foundation/solana-developer-platform/integrate-webhook/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/solana-foundation/solana-developer-platform/integrate-webhook"><img src="https://agentmods.dev/badge/skills/solana-foundation/solana-developer-platform/integrate-webhook.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 | $0.00039 | $0.01818 |
| Opus 5.5 | $0.00016 | $0.00727 |
| Sonnet 5.5 | $0.00008 | $0.00364 |
| Haiku 4.5 | $0.00004 | $0.00182 |
Grade A, and why
integrate-webhook 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.
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Integrate webhook
Webhooks drive a transfer toward settlement after the quote. Provider settled
only reaches settling; verify-ramp-deliveries checks the chain before
completed. Follow docs/contributing/ramp-provider-safety.md. Implement one
WebhookProcessor in apps/sdp-api/src/services/ramps/webhooks/<id>.ts using
the interface in processor.ts:
verify(context)— verify the raw request signature, return the raw body.parse(rawBody, environment)— pure: validate the envelope, then hand the provider's transaction object to the package status mapping.process(env, environment, event)— DB orchestration throughapplyRampSettlementEvent.
Canonical examples: the registered processors in
apps/sdp-api/src/services/ramps/webhooks/.
Mount + flow
Webhooks are not under /v1. They land at
POST /webhooks/payments/ramps/{sandbox|production}/:provider.
parseRampWebhookProvider accepts an id only after registration in
apps/sdp-api/src/services/ramps/webhooks/registry.ts. The handler verifies
the raw body and persists it in the durable inbox before its 2xx response.
The same typed processor handles the background apply and replay.
verify
verify(context: RampWebhookValidationContext): Promise<string> (defined beside
WebhookProcessor in apps/sdp-api/src/services/ramps/webhooks/processor.ts).
context = { env, environment, headers, rawBody, requestUrl? }. Read the mode-keyed
verification key, verify the signature over the raw body, and return that
body. Throw UNAUTHORIZED on a missing or invalid signature. Use
apps/sdp-api/src/lib/webhook-signature.ts with the provider-signed timestamp.
The shared verifier currently supports HMAC-SHA256, and it requires a provider-signed timestamp. If the upstream uses another algorithm or does not sign a timestamp, stop and extend/review the shared verification contract; do not fabricate a local timestamp or bypass replay protection.
This is one of the few places unknown is allowed — it's a genuine trust boundary, narrowed immediately by parse.
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 · +1 lines e2bc90b374a6
- 2d ago Changed · +54 lines 7e6fe2f77af3
- 5d ago Changed · -2 lines 3b1c38b61ca1
- 7d ago Changed 15b9740c91ab
- 8d ago Changed · -1 lines 53c996a9c09c
- 9d ago Changed · -1 lines f9ebc3bf0f11
- 1mo ago Changed 2b2c1b22996c
- 1mo ago First seen · 84 lines · 39 tokens per session scan A 5219fa20f7ba
integrate-webhook is a skill published in the GitHub repository solana-foundation/solana-developer-platform (58 stars, last pushed today), licensed MIT. It adds 39 tokens to every session and 1,818 once invoked, about $0.0002 per session on Opus 5.5. 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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