MateClaw is a pluggable agent runtime that coordinates AI agents, tools, conversations, memory, and workflows. It is designed for personal and multi-user AI assistants, including agents used through chat platforms. Catalogue add-ons provide skills for extending its agent workflows.
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 mateaix/mateclaw --skill webhook-subscriptionsgit clone --depth 1 https://github.com/mateaix/mateclawWrote 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/mateaix/mateclaw/webhook-subscriptions)<a href="https://agentmods.dev/skills/mateaix/mateclaw/webhook-subscriptions"><img src="https://agentmods.dev/badge/skills/mateaix/mateclaw/webhook-subscriptions/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/mateaix/mateclaw/webhook-subscriptions"><img src="https://agentmods.dev/badge/skills/mateaix/mateclaw/webhook-subscriptions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 16 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00013 | $0.01680 |
| Opus 5.5 | $0.00005 | $0.00672 |
| Sonnet 5.5 | $0.00003 | $0.00336 |
| Haiku 4.5 | $0.00001 | $0.00168 |
Grade A, and why
webhook-subscriptions 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 1mo 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 http://localhost:8644/health Copies of this mod
6 near-identical copies found in the catalogue:
- webhook-subscriptions — 94% identical, 64 lines differ
- webhook-subscriptions — 94% identical, 64 lines differ
- webhook-subscriptions — 94% identical, 64 lines differ
- webhook-subscriptions — 92% identical, 69 lines differ
- webhook-subscriptions — 84% identical, 64 lines differ
- webhook-subscriptions — 84% identical, 64 lines differ
How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Webhook Subscriptions
Create dynamic webhook subscriptions so external services (GitHub, GitLab, Stripe, CI/CD, IoT sensors, monitoring tools) can trigger the agent agent runs by POSTing events to a URL.
Setup (Required First)
The webhook platform must be enabled before subscriptions can be created. Check with:
the agent webhook list
If it says "Webhook platform is not enabled", set it up:
Option 1: Setup wizard
the agent gateway setup
Follow the prompts to enable webhooks, set the port, and set a global HMAC secret.
Option 2: Manual config
Add to ~/.mateclaw/config.yaml:
platforms:
webhook:
enabled: true
extra:
host: "0.0.0.0"
port: 8644
secret: "generate-a-strong-secret-here"
Option 3: Environment variables
Add to ~/.mateclaw/.env:
WEBHOOK_ENABLED=true
WEBHOOK_PORT=8644
WEBHOOK_SECRET=generate-a-strong-secret-here
After configuration, start (or restart) the gateway:
the agent gateway run
# Or if using systemd:
systemctl --user restart the agent-gateway
Verify it's running:
curl http://localhost:8644/health
Commands
All management is via the the agent webhook CLI command:
Create a subscription
the agent webhook subscribe <name> \
--prompt "Prompt template with {payload.fields}" \
--events "event1,event2" \
--description "What this does" \
--skills "skill1,skill2" \
--deliver telegram \
--deliver-chat-id "12345" \
--secret "optional-custom-secret"
Returns the webhook URL and HMAC secret. The user configures their service to POST to that URL.
List subscriptions
the agent webhook list
Remove a subscription
the agent webhook remove <name>
Test a subscription
the agent webhook test <name>
the agent webhook test <name> --payload '{"key": "value"}'
Prompt Templates
Prompts support {dot.notation} for accessing nested payload fields:
{issue.title}— GitHub issue title{pull_request.user.login}— PR author{data.object.amount}— Stripe payment amount{sensor.temperature}— IoT sensor reading
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.
- 1mo ago First seen · 208 lines · 13 tokens per session scan A dea6ebe710d7
webhook-subscriptions is a skill published in the GitHub repository mateaix/mateclaw (1,164 stars, last pushed yesterday), licensed Apache-2.0. It adds 13 tokens to every session and 1,680 once invoked, about $0.0001 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 2026-08-30.
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