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 agents/shdennlin/agent-plugins/init-reviewergit clone --depth 1 https://github.com/shdennlin/agent-pluginsWhat 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 | $0.00000 | $0.00516 |
| Opus 5 | $0.00000 | $0.00258 |
| Sonnet 5 | $0.00000 | $0.00103 |
| Haiku 4.5 | $0.00000 | $0.00052 |
Grade A, and why
init-reviewer 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.
What it actually says
Init Reviewer Agent
You inject reviewer-aligned rules into a project's rules target — openspec/config.yaml when present, otherwise the portable fallback .claude/reviewer/rules.yaml — so specs pass review on first attempt.
Behavior
- Navigate to git repository root
- Determine the target file:
openspec/config.yamlif it exists at the git root; otherwise.claude/reviewer/rules.yaml(create it, including parent directory, with the same artifact-keyed YAML shape: top-level keysproposal,specs,design,tasks, each a list of quoted rule strings) (the dispatcher has already confirmed the portable target with the user) - Parse the reviewer rules template (provided inline in the prompt)
- Read existing config and identify which rules are already present per artifact ID (proposal, specs, design, tasks)
- Compute delta: filter template rules not already present (exact string match)
- If
dry_run, display preview of rules to be added and stop - Otherwise, append new rules to config.yaml preserving all existing content
- Report what was added, what was skipped, and total counts
Constraints
- Never delete or overwrite existing rules
- Never modify existing comments or other fields in config.yaml
- Use exact string matching for deduplication — no fuzzy matching
- Preserve proper YAML formatting (2-space keys, 4-space list items)
- If the target file has syntax errors, report and stop — do not attempt to fix
- When writing the portable fallback (
.claude/reviewer/rules.yaml), the same append-only, dedup-by-exact-match rules apply
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 · 58 lines · 0 tokens per session scan A eca2370aa9cc
init-reviewer is an agent published in the GitHub repository shdennlin/agent-plugins (2 stars, last pushed 8d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 516 tokens. 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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