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 commands/swhee/diffscope/offgit clone --depth 1 https://github.com/SWHee/diffscopeWhat 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 | $0.00019 | $0.00115 |
| Opus 5 | $0.00010 | $0.00057 |
| Sonnet 5 | $0.00004 | $0.00023 |
| Haiku 4.5 | $0.00002 | $0.00012 |
Grade A, and why
off scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Disable diffscope's automatic briefing:
sh "${CLAUDE_PLUGIN_ROOT}/scripts/toggle.sh" off $ARGUMENTS
Report the script's output to the user. Do nothing else.
By default this affects only the current repository, and it survives restarts.
--global disables briefings everywhere.
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.
- yesterday First seen · 17 lines · 19 tokens per session scan A 1c63c0467738
off is a command published in the GitHub repository SWHee/diffscope (1 stars, last pushed 29d ago), licensed MIT. It adds 19 tokens to every session and 115 once invoked, about $0.0001 per session on Opus 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.
Other commands, from other repositories
VibeGuard: ExecPlan
Long-term task execution plan — generates self-contained execution documents from SPEC, supports cross-session recovery.
VibeGuard: Review
Structured code review - first run the guard to obtain the baseline, then review according to security → logic → quality → performance priority.
VibeGuard: Live Truth
Verify live claims with fresh facts, inferences, and unresolved gaps.
VibeGuard: Stats
View hooks trigger statistics - interception/warning/release times and reason analysis.
safe-build
Build the application for development or production.
memory
Use when: user asks to remember something, after solving a non-obvious problem, or to capture key session findings.