Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add thenativeweb/claude-plugins/plugin install esdbWrote 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/thenativeweb/claude-plugins/ping)<a href="https://agentmods.dev/skills/thenativeweb/claude-plugins/ping"><img src="https://agentmods.dev/badge/skills/thenativeweb/claude-plugins/ping/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/thenativeweb/claude-plugins/ping"><img src="https://agentmods.dev/badge/skills/thenativeweb/claude-plugins/ping.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 | $0.00034 | $0.00208 |
| Opus 5.5 | $0.00014 | $0.00083 |
| Sonnet 5.5 | $0.00007 | $0.00042 |
| Haiku 4.5 | $0.00003 | $0.00021 |
Grade A, and why
ping scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -i "${ESDB_URL:-http://localhost:3000}/api/v1/ping" What it actually says
Ping
Check if an EventSourcingDB instance is reachable.
Shared Instructions
First read ${CLAUDE_PLUGIN_ROOT}/shared/common.md. It explains how to determine the base URL, how to handle NDJSON responses, and which conventions apply. Follow it throughout this skill.
Request
No authentication is required for this endpoint.
curl -s -i "${ESDB_URL:-http://localhost:3000}/api/v1/ping"
Response
Check that the response contains HTTP status 200 OK and the Server header starts with EventSourcingDB/.
The response body is JSON in CloudEvents format and contains:
{"data":{"message":"My God, it's full of stars."}}
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 · 32 lines · 34 tokens per session scan A ce5c20a033c5
ping is a skill published in the GitHub repository thenativeweb/claude-plugins (6 stars, last pushed 3mo ago), licensed MIT. It adds 34 tokens to every session and 208 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 2026-08-31.
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