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.
/plugin marketplace add bfollington/claude-blackboardnpx agentmods add plugins/bfollington/claude-blackboard/blackboardgit clone --depth 1 https://github.com/bfollington/claude-blackboardWrote 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/plugins/bfollington/claude-blackboard/blackboard)<a href="https://agentmods.dev/plugins/bfollington/claude-blackboard/blackboard"><img src="https://agentmods.dev/badge/plugins/bfollington/claude-blackboard/blackboard.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
blackboard scanned grade A with 0 findings 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 2d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What it installs
The manifest is a name and a version. 10 commands, 1 agent, 5 hooks travel with it, and installing the plugin installs all of them — 102 tokens a session between them. Each is measured on its own page, and each can be installed alone.
- Command plan A 10 tokens
- Command threads A 12 tokens
- Command thread A 7 tokens
- Command reflect A 0 tokens
- Command bug-report A 8 tokens
- Command crumb A 7 tokens
- Command oops A 8 tokens
- Command query A 12 tokens
- Command status A 5 tokens
- Command install B 7 tokens
- Agent implementer A 26 tokens
- Hook SessionStart A not measured
- Hook PostToolUse A not measured
- Hook PreCompact A not measured
- Hook PreToolUse A not measured
- Hook SubagentStop A not measured
What ships with it
2 files beside marketplace.json#blackboard 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.
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.
- 2d ago First seen · 18 lines scan A 9069c3770ff4
blackboard is a plugin published in the GitHub repository bfollington/claude-blackboard (11 stars, last pushed 6mo ago), licensed AGPL-3.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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