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 agentmods add skills/thenativeweb/claude-plugins/read-subjectsnpx skills add thenativeweb/claude-plugins --skill read-subjectsgit clone --depth 1 https://github.com/thenativeweb/claude-pluginsWrote 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/read-subjects)<a href="https://agentmods.dev/skills/thenativeweb/claude-plugins/read-subjects"><img src="https://agentmods.dev/badge/skills/thenativeweb/claude-plugins/read-subjects.svg" alt="Measured on agentmods" 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 | $0.00035 | $0.00346 |
| Opus 5 | $0.00017 | $0.00173 |
| Sonnet 5 | $0.00007 | $0.00069 |
| Haiku 4.5 | $0.00003 | $0.00035 |
Grade A, and why
read-subjects 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 3d 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 --no-buffer -X POST \ What it actually says
Read Subjects
List subjects that have received events in an EventSourcingDB instance.
Shared Instructions
First read ${CLAUDE_PLUGIN_ROOT}/shared/common.md. It explains how to determine the base URL and API token, how to handle NDJSON responses, and which conventions apply. Follow it throughout this skill.
Request
This endpoint returns NDJSON:
curl -s --no-buffer -X POST \
-H "authorization: Bearer ${ESDB_API_TOKEN}" \
-H "content-type: application/json" \
-d '<REQUEST_BODY>' \
"${ESDB_URL:-http://localhost:3000}/api/v1/read-subjects" \
| grep -v '"type":"heartbeat"'
Request Body
{
"baseSubject": "/"
}
Example
curl -s --no-buffer -X POST \
-H "authorization: Bearer ${ESDB_API_TOKEN}" \
-H "content-type: application/json" \
-d '{"baseSubject": "/"}' \
"${ESDB_URL:-http://localhost:3000}/api/v1/read-subjects" \
| grep -v '"type":"heartbeat"'
Response
NDJSON stream with one line per subject:
{"type":"subject","payload":{"subject":"/books/42"}}
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.
- 3d ago First seen · 54 lines · 35 tokens per session scan A 018b5a73d218
read-subjects is a skill published in the GitHub repository thenativeweb/claude-plugins (6 stars, last pushed 2mo ago), licensed MIT. It adds 35 tokens to every session and 346 once invoked, about $0.0002 per session on Opus 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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