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 YSY-99/meta-ads-api-field-guide --skill meta-adsgit clone --depth 1 https://github.com/YSY-99/meta-ads-api-field-guideWrote 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/ysy-99/meta-ads-api-field-guide/meta-ads)<a href="https://agentmods.dev/skills/ysy-99/meta-ads-api-field-guide/meta-ads"><img src="https://agentmods.dev/badge/skills/ysy-99/meta-ads-api-field-guide/meta-ads/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/ysy-99/meta-ads-api-field-guide/meta-ads"><img src="https://agentmods.dev/badge/skills/ysy-99/meta-ads-api-field-guide/meta-ads.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 | $0.00074 | $0.01775 |
| Opus 5 | $0.00037 | $0.00888 |
| Sonnet 5 | $0.00015 | $0.00355 |
| Haiku 4.5 | $0.00007 | $0.00178 |
Grade A, and why
meta-ads 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Meta Ads — Production-Safe Automation Skill
This skill loads the operational discipline from the Meta Ads API Field Guide so Claude doesn't hallucinate deprecated fields, blow past rate limits, or accidentally trigger learning-phase resets.
When to use
Trigger this skill for ANY Meta Ads API work:
- Creating campaigns, ad sets, ads, or creatives
- Pulling insights / building reports
- Scaling budgets / managing active campaigns
- Debugging API errors (code 10, 17, 190, 1487225, etc.)
- Cross-account creative transfers
- CAPI / server-side event setup
Do NOT trigger for pure Ads Manager UI questions, CRO strategy, or non-API marketing advice.
Hard rules (never violate)
-
PAUSED by default. Every campaign, ad set, and ad created via API must have
status: "PAUSED". User activates manually after review. → Field Guide: Pre-Campaign Checklist -
Write operations require confirmation. Before any create/update/delete, show the user what will be written and wait for explicit approval. Read-only (
get_*,list_*) is free. -
Attribution from donor, literally. When copying a campaign, copy
attribution_specexactly from the donor. Never "upgrade"1d_click→7d_click. → Pitfall 1 -
Rate limit: stop on error, don't retry. On code 17, 613, or subcode 80004, read
X-Business-Use-Case-Usage.estimated_time_to_regain_accessand sleep. Do NOT retry immediately. → Rate Limits -
Cross-account = checklist first. Image hashes, page IDs, pixel IDs, audience IDs are all account-scoped. Never reuse across accounts without substitution. → Cross-Account Ops
-
Incremental > rebuild. If > 50% of target objects already exist correctly, add the missing ones. Don't delete and recreate. → Pitfall 14
-
Budget changes: max 4/hour per ad set, ≤ 20% increments. Error subcode 1487225 = budget change limit. > 20% = learning phase reset. → Budgets & Learning Phase
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.
- 10d ago First seen · 126 lines · 74 tokens per session scan A 74ac688f839e
meta-ads is a skill published in the GitHub repository YSY-99/meta-ads-api-field-guide (15 stars, last pushed 4mo ago), licensed MIT. It adds 74 tokens to every session and 1,775 once invoked, about $0.0004 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 2026-08-30.
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