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 Servosity/msp-skills --skill aws-billinggit clone --depth 1 https://github.com/Servosity/msp-skillsWrote 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/servosity/msp-skills/aws-billing)<a href="https://agentmods.dev/skills/servosity/msp-skills/aws-billing"><img src="https://agentmods.dev/badge/skills/servosity/msp-skills/aws-billing/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/servosity/msp-skills/aws-billing"><img src="https://agentmods.dev/badge/skills/servosity/msp-skills/aws-billing.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 | $0.00108 | $0.08380 |
| Opus 5.5 | $0.00043 | $0.03352 |
| Sonnet 5.5 | $0.00022 | $0.01676 |
| Haiku 4.5 | $0.00011 | $0.00838 |
Grade E, and why
aws-billing scanned grade E with 3 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 4d 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.
Tells the agent never to refusehighAnti-refusal
Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.
| `file:<path>` | Atomically write output to `<path>` as a private 0600 file (exclusive randomly named temp in the destination directory, then rename; a planted symlink is not followed). Binary-response commands write de Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
- The shared credential kit holds every AWS credential this program can read from the moment it starts (the credential variables, `~/.aws/credentials`, the credential keys of `~/.aws/config`, the SSO and login token cach Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
bash <(curl -fsSL https://raw.githubusercontent.com/Servosity/msp-skills/main/skills/aws-billing/install.sh) The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What ships with it
60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .claude-plugin/plugin.json 618 B
- AGENTS.md 8.9 KB
- CHANGELOG.md 11 KB
- cli/.golangci.yml 555 B
- cli/cmd/aws-billing-cli/main.go 664 B
- cli/cmd/aws-billing-mcp/http_auth_test.go 27 KB
- cli/cmd/aws-billing-mcp/main.go 18 KB
- cli/go.mod 3.1 KB
- cli/go.sum 12 KB
- cli/internal/awsbillingblackbox/blackbox_test.go 24 KB
- cli/internal/awsbillingblackbox/codex_r1_test.go 17 KB
- cli/internal/awsbillingblackbox/codex_r2_test.go 4.8 KB
- cli/internal/awsbillingblackbox/dryrun_test.go 2.5 KB
- cli/internal/awsbillingblackbox/endpoints_test.go 7.1 KB
- cli/internal/awsbillingblackbox/fakeaws_test.go 33 KB
- cli/internal/awsbillingblackbox/inventory_test.go 4.0 KB
- cli/internal/awsbillingblackbox/r1b_imds_test.go 5.0 KB
- cli/internal/awsbillingblackbox/r1b_region_test.go 3.7 KB
- cli/internal/awsbillingblackbox/r1b_signers_test.go 4.0 KB
- cli/internal/awsbillingblackbox/r1c_config_path_test.go 2.6 KB
- cli/internal/awsbillingblackbox/report_test.go 5.9 KB
- cli/internal/awsbillingblackbox/sources_test.go 7.9 KB
- cli/internal/awsbillingblackbox/startup_test.go 1.9 KB
- cli/internal/awsbillingblackbox/synccpu_store_test.go 626 B
- cli/internal/awsx/awsbilling_guard_test.go 8.2 KB
- cli/internal/awsx/awsbilling_guard.go 18 KB
- cli/internal/awsx/awsbilling_imds_test.go 4.6 KB
- cli/internal/awsx/awsbilling_region_test.go 1.7 KB
- cli/internal/awsx/awsbilling_signers_test.go 3.2 KB
- cli/internal/awsx/awsbilling_testendpoint.go 2.7 KB
- cli/internal/awsx/awsx_test.go 5.0 KB
- cli/internal/awsx/client.go 8.1 KB
- cli/internal/awsx/costexplorer.go 7.7 KB
- cli/internal/awsx/inventory.go 12 KB
- cli/internal/awsx/organizations.go 1.5 KB
- cli/internal/awsx/pricing.go 2.4 KB
- cli/internal/awsx/types.go 2.5 KB
- cli/internal/cache/cache.go 1.9 KB
- cli/internal/cli/accounts_get.go 1.8 KB
- cli/internal/cli/accounts_list.go 4.3 KB
- cli/internal/cli/accounts.go 775 B
- cli/internal/cli/agent_context.go 7.7 KB
- cli/internal/cli/api_discovery.go 3.7 KB
- cli/internal/cli/ask_test.go 1.1 KB
- cli/internal/cli/ask.go 8.1 KB
- cli/internal/cli/awsbilling_aws.go 5.9 KB
- cli/internal/cli/awsbilling_codex_r1_test.go 1.1 KB
- cli/internal/cli/awsbilling_codex_r2_test.go 9.1 KB
- cli/internal/cli/awsbilling_doctor_verdict_test.go 1.4 KB
- cli/internal/cli/awsbilling_dryrun_response.go 529 B
- cli/internal/cli/awsbilling_guard_test.go 881 B
- cli/internal/cli/awsbilling_guard.go 1.3 KB
- cli/internal/cli/awsbilling_scope.go 13 KB
- cli/internal/cli/awsbilling_sync_outcome_test.go 2.4 KB
- cli/internal/cli/awsdata.go 9.6 KB
- cli/internal/cli/bill.go 6.6 KB
- cli/internal/cli/channel_workflow.go 7.1 KB
- cli/internal/cli/compare.go 4.5 KB
- cli/internal/cli/consolidated_test.go 1.1 KB
- cli/internal/cli/consolidated.go 5.0 KB
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.
- 4d ago Changed · +274 lines · -9 tokens per session scan A → E 3be4014740a4
- 19d ago Changed b45b415c025c
- 2mo ago Changed · +1 lines b985587270d3
- 2mo ago First seen · 289 lines · 117 tokens per session scan A 2d0ef0da3c73
aws-billing is a skill published in the GitHub repository Servosity/msp-skills (74 stars, last pushed today), with no licence file. It adds 108 tokens to every session and 8,380 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it E with 3 findings (tells the agent never to refuse, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
aws-billing compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| aws-billingServosity/msp-skills | Skill | 74 | today | none | E | 108 | Claude Code |
| imagegenopenai/codex | Skill | 135k | today | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 5d ago | MIT | A | 200 | Claude Code, Codex |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 316k | 8d ago | MIT | A | 21 | Claude Code |