Borrowing it
Nothing to install: this file belongs to karanb192/bouncer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/karanb192/bouncer/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/karanb192/bouncerWrote 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/instructions/karanb192/bouncer/copilot-instructions)<a href="https://agentmods.dev/instructions/karanb192/bouncer/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/karanb192/bouncer/copilot-instructions/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/instructions/karanb192/bouncer/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/karanb192/bouncer/copilot-instructions.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 | $0.00475 | $0.00475 |
| Opus 5.5 | $0.00190 | $0.00190 |
| Sonnet 5.5 | $0.00095 | $0.00095 |
| Haiku 4.5 | $0.00047 | $0.00047 |
Grade A, and why
bouncer copilot-instructions.md 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 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.
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.
What it actually says
Bouncer: destructive-command guardrails
Bouncer enforces these rules at the door via a fail-closed preToolUse hook. This
list is the advisory, defense-in-depth layer: do not propose or run any of the
following destructive shell commands. The hook will deny them anyway, so don't waste a turn.
Never run a command that:
- Deletes broadly or irrecoverably:
rm -rf /,rm -rf ~,rm -rf .,rm -rf *,rm -rf --no-preserve-root /,sudo rm -rf, deletingnode_modules ../../*or parent/glob targets. - Writes to or formats a raw disk device:
dd of=/dev/sd*,mkfs.*,wipefs -a /dev/*,echo ... > /dev/sda. - Overwrites protected system files:
chmod 777 /etc/passwd,chmod -R 777 /,chown -R ... /,echo ... > /etc/passwd. - Spawns a fork bomb (
:(){ :|:& };:) or kills init (kill -9 1). - Rewrites or destroys git history/remote:
git push --force origin main,git reset --hard,git clean -fdx. - Pipes a URL straight to a shell (RCE):
curl ... | sh,wget -qO- ... | bash. - Exfiltrates secrets:
curl -d @.env ...,curl -T id_rsa ..., posting to paste/exfil hosts. - Exposes secrets:
cat .env,cat ~/.ssh/id_rsa,printenv,echo $AWS_SECRET_ACCESS_KEY. - Destroys a database/store:
DROP TABLE/DATABASE/SCHEMA,TRUNCATE, un-WHERE'dDELETE/UPDATE,redis-cli flushall,dropdb. - Performs an irreversible release/data loss:
npm publish,docker volume rm.
If a task seems to require one of these, stop and ask the user first. Prefer scoped,
reversible alternatives (a WHERE clause, --force-with-lease, a dry run).
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 · 22 lines · 475 tokens per session scan F d9d81db9e144
bouncer copilot-instructions.md is an instructions file published in the GitHub repository karanb192/bouncer (5 stars, last pushed 2mo ago), licensed MIT. It adds 475 tokens to every session, about $0.0019 per session on Opus 5.5. 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 2026-08-31.
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