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 shdennlin/agent-plugins/plugin install ralph-loopWrote 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/commands/shdennlin/agent-plugins/cancel-ralph)<a href="https://agentmods.dev/commands/shdennlin/agent-plugins/cancel-ralph"><img src="https://agentmods.dev/badge/commands/shdennlin/agent-plugins/cancel-ralph/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/commands/shdennlin/agent-plugins/cancel-ralph"><img src="https://agentmods.dev/badge/commands/shdennlin/agent-plugins/cancel-ralph.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 | $0.00004 | $0.00211 |
| Opus 5.5 | $0.00002 | $0.00084 |
| Sonnet 5.5 | $0.00001 | $0.00042 |
| Haiku 4.5 | $0.00000 | $0.00021 |
Grade A, and why
cancel-ralph scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Cancel Ralph
To cancel the Ralph loop:
-
Check if a state file exists for this session using Bash:
SID="${CLAUDE_SESSION_ID:-${CLAUDE_CODE_SESSION_ID:-}}" RALPH_STATE_FILE="${CLAUDE_PLUGIN_ROOT}/state/${SID}.md" test -f "$RALPH_STATE_FILE" && echo "EXISTS" || echo "NOT_FOUND" -
If NOT_FOUND: Say "No active Ralph loop found for this session."
-
If EXISTS:
- Read the state file to get the current iteration number from the
iteration:field - Remove the file using Bash:
rm "$RALPH_STATE_FILE" - Report: "Cancelled Ralph loop (was at iteration N)" where N is the iteration value
- Read the state file to get the current iteration number from the
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 · 24 lines · 4 tokens per session scan A a2c74e8df284
cancel-ralph is a command published in the GitHub repository shdennlin/agent-plugins (3 stars, last pushed yesterday), licensed MIT. It adds 4 tokens to every session and 211 once invoked, about $0.0000 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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