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 hookdeck/webhook-skills --skill pagerduty-webhooksgit clone --depth 1 https://github.com/hookdeck/webhook-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/hookdeck/webhook-skills/pagerduty-webhooks)<a href="https://agentmods.dev/skills/hookdeck/webhook-skills/pagerduty-webhooks"><img src="https://agentmods.dev/badge/skills/hookdeck/webhook-skills/pagerduty-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/hookdeck/webhook-skills/pagerduty-webhooks"><img src="https://agentmods.dev/badge/skills/hookdeck/webhook-skills/pagerduty-webhooks.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00192 | $0.06724 |
| Opus 5.5 | $0.00077 | $0.02690 |
| Sonnet 5.5 | $0.00038 | $0.01345 |
| Haiku 4.5 | $0.00019 | $0.00672 |
Grade A, and why
pagerduty-webhooks scanned grade A with 1 finding 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 13d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST https://api.pagerduty.com/webhook_subscriptions \ How it starts
The opening of the file, as written. The whole thing — 471 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PagerDuty Webhooks
PagerDuty sends outbound V3 webhooks when incidents and services change — triggered, acknowledged, escalated, reassigned, resolved, annotated, and more.
This skill targets V3 webhook subscriptions — the current and only supported generation, created via
POST https://api.pagerduty.com/webhook_subscriptions.Canonical docs: Webhooks Overview, Verifying Signatures, Behaviour.
What This Is Not
- V1 webhook extensions — not covered, EOL October 2022 (they no longer function).
- V2 webhook extensions — legacy. End-of-support 31 Oct 2022, still
functioning (no EOL date set) but receiving no fixes or features. Their
payload is a
messages[]array with event strings likeincident.trigger(singular, nod) — deliberately different from V3'sincident.triggered. V2 extensions are not signed withX-PagerDuty-Signature, so none of the verification here applies to them. Migrate to V3. - PagerDuty Events API v1/v2 (
events.pagerduty.com) — the opposite direction. You send alerts and change events to PagerDuty. Not webhooks. - Custom Incident Actions / "Generic Webhooks" — same delivery pipeline, but a 16-second response timeout instead of 5 (see Delivery).
- Lookalikes: PagerTree, Pagerly, Opsgenie, incident.io. Unrelated companies.
When to Use This Skill
- How do I receive PagerDuty webhooks?
- How do I verify a PagerDuty webhook signature?
- Why is my
X-PagerDuty-Signatureverification failing? - Why does
X-PagerDuty-Signaturecontain two signatures? - How do I handle
incident.triggered,incident.acknowledgedandincident.resolved? - Where do I get the PagerDuty webhook signing secret?
- Does PagerDuty send a handshake or validation request? (No.)
- How do I de-duplicate PagerDuty webhook retries?
What ships with it
19 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.
- examples/express/.env.example 708 B
- examples/express/package.json 525 B
- examples/express/README.md 6.6 KB
- examples/express/src/index.js 19 KB runs code
- examples/express/test/webhook.test.js 20 KB runs code
- examples/fastapi/.env.example 708 B
- examples/fastapi/main.py 21 KB runs code
- examples/fastapi/README.md 7.2 KB
- examples/fastapi/requirements.txt 82 B
- examples/fastapi/test_webhook.py 23 KB runs code
- examples/nextjs/.env.example 683 B
- examples/nextjs/app/webhooks/pagerduty/route.ts 21 KB runs code
- examples/nextjs/package.json 603 B
- examples/nextjs/README.md 7.2 KB
- examples/nextjs/test/webhook.test.ts 20 KB runs code
- examples/nextjs/vitest.config.ts 162 B runs code
- references/overview.md 23 KB
- references/setup.md 13 KB
- references/verification.md 20 KB
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.
- 13d ago First seen · 471 lines · 192 tokens per session scan A 880aa2776635
pagerduty-webhooks is a skill published in the GitHub repository hookdeck/webhook-skills (92 stars, last pushed 3d ago), licensed MIT. It adds 192 tokens to every session and 6,724 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-03.
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