What is logql-observability?

A guide to searching and troubleshooting application logs on Control Plane using LogQL, the query language for Loki log storage. It covers workload output, access logs, network egress logs, scheduled-job runs, retention, and Grafana.

Use it to query workload logs, investigate scheduled jobs and network activity, check log access requirements, and write structured or raw LogQL queries.

It helps find the events behind failures, missing output, truncated logs, or unexpected traffic without relying only on application behavior.

logql-observability — Skill by controlplane-com

Install

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.

agentmods

npx agentmods add skills/controlplane-com/ai-plugin/logql-observability

Any agent

npx skills add controlplane-com/ai-plugin --skill logql-observability

Clone the repo

git clone --depth 1 https://github.com/controlplane-com/ai-plugin

Made for: Claude Code, Codex.

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,987 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00053	$0.02987
Opus 5	$0.00026	$0.01494
Sonnet 5	$0.00011	$0.00597
Haiku 4.5	$0.00005	$0.00299

Measured 2d ago against content hash b81a2a8a8c86, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

logql-observability 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.

plugins/cpln/skills/logql-observability/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LogQL & Log Observability

Tool availability: get_workload_logs is advertised on every toolset profile, readonly included. Some other MCP tools named here live in the full toolset profile — if one is not advertised on this connection, tell the user to reconnect the MCP server with ?toolsets=full (or use the cpln CLI fallback). Reads work on every profile via the generic list_resources / get_resource tools; delete_resource is on every profile except readonly.

Control Plane stores workload stdout/stderr in Loki and queries it with LogQL. The org is the Loki tenant — it comes from the endpoint path, so org is never a query label and queries cannot cross orgs. Reading logs requires the org-level readLogs permission, and the in-pod CPLN_TOKEN cannot authenticate to the logs endpoint — use a user or service-account token (see the workload skill). The recurring agent failure is passing a raw query to the MCP tool alongside structured params: a raw query replaces them entirely (the tool rejects the combination), so a raw query must embed every label itself.

Two ways to query

MCP (primary for agents): mcp__cpln__get_workload_logs — structured params gvc (required), workload, container, location, filter (literal substring, LogQL |=, not regex); window since (default 1h) or from/to (ISO 8601, from inclusive, to exclusive); limit (default 30, max 999, single request — truncated: true means narrow the window or filter harder); order (oldest_first default, or newest_first). For regex, parsers, or the replica/stream/version labels, pass a raw query (max 500 chars) instead of the structured selectors.
CLI: cpln logs '<LOGQL>' — interactive debugging (live --tail), scripts, CI.

# Defaults: --since 1h, --limit 30, --direction forward
cpln logs '{gvc="GVC", workload="WORKLOAD"}' --org ORG
cpln logs '{gvc="GVC", workload="WORKLOAD"} |= "error"' --limit 100
cpln logs '{gvc="GVC", workload="WORKLOAD", container="main"}' --since 7d
cpln logs '{gvc="GVC", workload="WORKLOAD"}' --tail              # live follow; the server ends a tail session after 30m
cpln logs '{gvc="GVC", workload="WORKLOAD"}' \
  --from 2026-06-01T00:00:00Z --to 2026-06-02T00:00:00Z          # ISO 8601 or relative (7d, now-1M); from inclusive, to exclusive
cpln logs '{gvc="GVC", workload="WORKLOAD"} |= "error"' --since 24h --limit 0   # 0 = unlimited, auto-paginates
cpln logs '{gvc="GVC", workload="WORKLOAD"}' -o jsonl            # one JSON object per line; -o raw = bare lines

Read the full file on GitHub · 148 lines

Changes

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 · 148 lines · 53 tokens per session scan A b81a2a8a8c86

Subscribe to this mod's changes

logql-observability is a skill published in the GitHub repository controlplane-com/ai-plugin (10 stars, last pushed 8d ago), licensed MIT. It adds 53 tokens to every session and 2,987 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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