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 skyf0xx/Pebble --skill pebble-setupgit clone --depth 1 https://github.com/skyf0xx/PebbleWrote 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/skyf0xx/pebble/pebble-setup)<a href="https://agentmods.dev/skills/skyf0xx/pebble/pebble-setup"><img src="https://agentmods.dev/badge/skills/skyf0xx/pebble/pebble-setup.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 5.1 | $0.00028 | $0.02105 |
| Opus 5 | $0.00014 | $0.01052 |
| Sonnet 5 | $0.00006 | $0.00421 |
| Haiku 4.5 | $0.00003 | $0.00211 |
Grade A, and why
pebble-setup scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
> `curl http://localhost:8642/health` — it should return How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Pebble for Hermes Agents
Pebble is a static PWA chat interface that talks to your Hermes HTTP API. The
Pebble launcher is a single self-contained binary: the web app and the Hermes
plugin are embedded in it, so there's no clone, no npm, no Node. It serves the
app and reverse-proxies /api/*, /v1/*, and /health to Hermes, so the
browser never makes a cross-origin request.
Prerequisite: a running Hermes API server. Check with
curl http://localhost:8642/health— it should return{"status": "ok", "platform": "hermes-agent"}. If it doesn't, enable the API server in~/.hermes/.envand restart the gateway:grep -q '^API_SERVER_ENABLED=' ~/.hermes/.env || echo "API_SERVER_ENABLED=true" >> ~/.hermes/.env grep -q '^API_SERVER_KEY=' ~/.hermes/.env || echo "API_SERVER_KEY=$(openssl rand -hex 32)" >> ~/.hermes/.env hermes gateway restart && sleep 3 && curl http://localhost:8642/health(If chat turns fail even though
/healthis ok, the agent has no model/tools configured yet — runhermes setup --portal.)
Updating? Same steps — re-run step 1 (latest binary) then step 2 (relaunch reinstalls the plugin);
hermes gateway restartif the plugin changed. No config migration. (Thepebble:pebble-updateskill is just a pointer back here.)
1. Download the binary into permanent storage (once) - ignore if already downloaded
Install it under ~/.hermes/bin/ — next to the agent it serves, and out of any
ephemeral working directory so it survives across sessions. Skip if you already
have it; re-run to update.
mkdir -p ~/.hermes/bin
# pick your platform: pebble-macos-arm64, -macos-x64, -linux-x64, -linux-arm64, -windows-x64.exe
curl -L https://github.com/skyf0xx/Pebble/releases/latest/download/pebble-macos-arm64 \
-o ~/.hermes/bin/pebble && chmod +x ~/.hermes/bin/pebble
2. Start Pebble
lsof -ti:5173 | xargs kill -9 2>/dev/null; sleep 1 # free the port first
~/.hermes/bin/pebble
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.
- 7d ago First seen · 164 lines · 28 tokens per session scan A f5fd6f5d0be7
pebble-setup is a skill published in the GitHub repository skyf0xx/Pebble (22 stars, last pushed 29d ago), licensed MIT. It adds 28 tokens to every session and 2,105 once invoked, about $0.0001 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 2026-08-30.
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