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 controlplane-com/ai-plugin --skill taggit clone --depth 1 https://github.com/controlplane-com/ai-pluginWrote 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/controlplane-com/ai-plugin/tag)<a href="https://agentmods.dev/skills/controlplane-com/ai-plugin/tag"><img src="https://agentmods.dev/badge/skills/controlplane-com/ai-plugin/tag/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/controlplane-com/ai-plugin/tag"><img src="https://agentmods.dev/badge/skills/controlplane-com/ai-plugin/tag.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00045 | $0.02278 |
| Opus 5.5 | $0.00018 | $0.00911 |
| Sonnet 5.5 | $0.00009 | $0.00456 |
| Haiku 4.5 | $0.00005 | $0.00228 |
Grade A, and why
tag 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 17d 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 — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tags — Labeling, Built-in Behaviors & Targeting
Tags are key-value labels on almost every Control Plane resource (workload, GVC, identity, secret, policy, group, domain, image, volumeset, agent, ipset, org, mk8s, user, service account). They live in a top-level tags: map. A tag is three things at once: metadata for humans, a selector that policies/groups/GVCs/queries target, and — under the reserved cpln/ namespace — a switch that turns on platform behavior the spec doesn't yet expose as a field.
Why tags pay off
| Capability | What a tag unlocks | Mechanism |
|---|---|---|
| Dynamic RBAC | A policy targetQuery on environment=production grants on every match — including resources created later |
access-control |
| Dynamic group membership | A group memberQuery auto-enrolls users by tag (e.g. SSO provider) |
access-control |
| Dynamic placement | A GVC locationQuery picks locations by tag (e.g. cpln/country) instead of a fixed list |
query-spec |
| Fleet inventory & bulk ops | cpln KIND query --tag tier=frontend finds every matching resource to act on |
cpln |
| Built-in behaviors | Reserved cpln/* tags switch on features (protection, sticky sessions, mTLS, …) |
see below |
| Console organization | List columns, custom logos, saved groups, and the Query filter all read tags | see below |
The payoff is retroactive and self-maintaining: tag a new workload environment=production and every prod policy, group, and dashboard that queries that tag covers it automatically — no rule edits.
Setting tags
| Where | How |
|---|---|
| CLI, dedicated | cpln KIND tag NAME --tag key=value (repeatable); --remove-tag key drops one |
| CLI, on create | cpln KIND create ... --tag key=value |
| CLI, generic update | cpln KIND update NAME --set tags.key=value (kinds with no tag subcommand, e.g. user) |
| MCP | The mcp__cpln__create_* / update_* tool for the kind accepts a tags object |
| Manifest | A top-level tags: map, then cpln apply -f FILE |
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.
- 17d ago Changed · -12 lines dfe38c71b6d6
- 1mo ago First seen · 150 lines · 45 tokens per session scan A 227982915aee
tag is a skill published in the GitHub repository controlplane-com/ai-plugin (11 stars, last pushed 3d ago), licensed MIT. It adds 45 tokens to every session and 2,278 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 2026-08-31.
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