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 agentmods add skills/controlplane-com/ai-plugin/cplnnpx skills add controlplane-com/ai-plugin --skill cplngit clone --depth 1 https://github.com/controlplane-com/ai-pluginWhat 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 | $0.00062 | $0.07035 |
| Opus 5 | $0.00031 | $0.03517 |
| Sonnet 5 | $0.00012 | $0.01407 |
| Haiku 4.5 | $0.00006 | $0.00703 |
Grade A, and why
cpln 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.
How it starts
The opening of the file, as written. The whole thing — 329 lines — stays where its author put it; the contents beside it link to each section on GitHub.
cpln CLI
MCP first; the CLI is the fallback — use it when the MCP server is unavailable or unauthenticated, for the CLI-only operations below, and for interactive debugging or scripted GitOps. In CI/CD the CLI is the primary interface — pipelines authenticate with a service-account key in CPLN_TOKEN, build and push images (cpln image build --push, or --remote on a runner with no Docker daemon), and apply resources (cpln apply --ready). Platform rules (resource model, secrets, destructive ops, production defaults, scale-to-zero, firewall) live in rules/cpln-guardrails.md; this skill is the CLI mechanics.
Never write a cpln command from memory. Verify every verb and flag with cpln <command> --help before quoting it. If a command isn't in the resource command map below, assume it isn't real.
CLI-only operations
No MCP equivalent — the CLI's primary job:
| Command | Purpose |
|---|---|
cpln image build |
Build a container image — locally with Docker, or on Control Plane with --remote (no daemon) — and push to the org registry |
cpln image copy |
Copy an image between orgs |
cpln port-forward |
Forward local ports to a running workload |
cpln convert |
Convert Kubernetes manifests to Control Plane specs (Compose is cpln stack) |
cpln cp |
Copy files in or out of a running container |
cpln apply |
Scripted GitOps — declarative create-or-update from files |
One-shot and interactive container commands, TTY sessions (workload connect, exec -it), and streamed logs (cpln logs --tail) are also CLI-only; MCP's get_workload_logs covers bounded log fetches. Everything else — discovery and CRUD — prefer the MCP tools (generic mcp__cpln__list_resources / get_resource / delete_resource with a kind, typed create_*/update_* for mutations).
When no MCP tool covers a resource, field, or sub-endpoint, use the cpln CLI for that piece (ground the command in this skill and --help) or tell the user what is missing. The raw-API escape hatch (cpln_api_request) is disabled by default — it bypasses the typed tools' pre-call validation.
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 First seen · 329 lines · 62 tokens per session scan A 6cde9949dd99
cpln is a skill published in the GitHub repository controlplane-com/ai-plugin (10 stars, last pushed 8d ago), licensed MIT. It adds 62 tokens to every session and 7,035 once invoked, about $0.0003 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 2026-08-31.
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