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 skills add nirecom/agents --skill aws-scan-costgit clone --depth 1 https://github.com/nirecom/agentsWrote 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/skills/nirecom/agents/aws-scan-cost)<a href="https://agentmods.dev/skills/nirecom/agents/aws-scan-cost"><img src="https://agentmods.dev/badge/skills/nirecom/agents/aws-scan-cost/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/skills/nirecom/agents/aws-scan-cost"><img src="https://agentmods.dev/badge/skills/nirecom/agents/aws-scan-cost.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 | $0.00019 | $0.00309 |
| Opus 5.5 | $0.00008 | $0.00124 |
| Sonnet 5.5 | $0.00004 | $0.00062 |
| Haiku 4.5 | $0.00002 | $0.00031 |
Grade A, and why
aws-scan-cost 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 21d 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
Procedure
ASC-1. Verify prerequisites. Requires ce:GetCostAndUsage.
ASC-2. Query (pass --profile $AWS_PROFILE; Cost Explorer ignores region):
- Current month:
aws ce get-cost-and-usage --time-period Start=<YYYY-MM-01>,End=<today> --granularity MONTHLY --metrics BlendedCost --group-by Type=DIMENSION,Key=SERVICE - Previous month: same with prior month range
ASC-3. Identify top 5 cost drivers; calculate MoM delta.
ASC-4. Write raw data to
$AWS_STATE_DIR/cost-<YYYYMMDD>.json. ASC-5. Write human-readable summary to$AWS_STATE_DIR/cost-<YYYYMMDD>.md: - Top 5 services ranked by cost (no dollar amounts — relative % or rank only)
- MoM trend per service (up/down/flat) ASC-6. Print: rank 1–5 only (no dollar amounts in conversation).
Rules
- Read-only. Dollar amounts must NOT appear in conversation.
- Skip gracefully if Cost Explorer disabled or access denied.
- Time ranges in UTC YYYY-MM-DD.
Skip Conditions
Skip if $AWS_STATE_DIR/cost-<YYYYMMDD>.json exists and is less than 4 hours old.
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.
- 21d ago Changed · -1 lines 1cc9c5b282eb
- 1mo ago First seen · 31 lines · 19 tokens per session scan A 38f1abde39be
aws-scan-cost is a skill published in the GitHub repository nirecom/agents (3 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 309 once invoked, about $0.0001 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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