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 stape-io/google-tag-manager-mcp-server --skill google-tag-managergit clone --depth 1 https://github.com/stape-io/google-tag-manager-mcp-serverWrote 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/stape-io/google-tag-manager-mcp-server/google-tag-manager)<a href="https://agentmods.dev/skills/stape-io/google-tag-manager-mcp-server/google-tag-manager"><img src="https://agentmods.dev/badge/skills/stape-io/google-tag-manager-mcp-server/google-tag-manager/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/stape-io/google-tag-manager-mcp-server/google-tag-manager"><img src="https://agentmods.dev/badge/skills/stape-io/google-tag-manager-mcp-server/google-tag-manager.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 | $0.00060 | $0.00630 |
| Opus 5.5 | $0.00024 | $0.00252 |
| Sonnet 5.5 | $0.00012 | $0.00126 |
| Haiku 4.5 | $0.00006 | $0.00063 |
Grade A, and why
google-tag-manager 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- handoff — 88% identical, 107 lines differ
How it starts
The opening of the file, as written. The whole thing — 26 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Tag Manager via the Stape GTM MCP server
Setup: hosted at https://gtm-mcp.stape.io/mcp (Google OAuth in the browser), or locally with npx -y google-tag-manager-mcp-server and your own credentials. See the README.
How the tools are shaped
One tool per GTM resource, with an action parameter: gtm_account, gtm_container, gtm_workspace, gtm_tag, gtm_trigger, gtm_variable, gtm_built_in_variable, gtm_folder, gtm_template, gtm_client, gtm_transformation, gtm_zone, gtm_environment, gtm_version, gtm_version_header, gtm_gtag_config, gtag_destination, gtm_user_permission. Plus gtm_guide (best-practice guidance) and gtm_auth_status (credential diagnostics).
Navigate top-down: gtm_account list → gtm_container list → gtm_workspace list → entities in that workspace.
Rules
- Read the guide first. Call
gtm_guidewith the topic that matches the task (safeEditing,naming,audit,trackingPlan,consentMode,serverSide) before planning changes. - Updates replace the whole entity. Always
getfirst, apply the change to the full object, and send it back with itsfingerprint. Anything omitted is deleted. - Work in a workspace, never live. Check with
gtm_workspacegetStatusandquickPreviewbefore creating a version. - Related changes go together. Use
gtm_workspacebulkUpdate(temporary IDsnew_1,new_2, ...) so a tag and its new trigger land atomically. - Prefer gallery templates over Custom HTML.
gtm_templateimportFromGalleryneedsacknowledgePermissions: true— show the user the permissions the template requests and get consent first. - Publishing and deleting need explicit user confirmation.
gtm_versionpublishchanges live traffic;removeactions are destructive. - Auth errors: on a 401/403 call
gtm_auth_status. It shows whether the token works, when it expires and which scopes are missing. - Large lists paginate. Follow
pagination.nextPage; for versions useresourceTypeto page through one resource type at a time.
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 Changed ebd1a05d9f97
- 10d ago First seen · 26 lines · 60 tokens per session scan A 1eae34437e98
google-tag-manager is a skill published in the GitHub repository stape-io/google-tag-manager-mcp-server (230 stars, last pushed today), licensed Apache-2.0. It adds 60 tokens to every session and 630 once invoked, about $0.0002 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 2026-10-07.
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