promql SKILL.md skillA
promql from xobotyi/cc-foundry is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add xobotyi/cc-foundry/promql@git:20260521.aae5685Pins git:20260521.aae5685 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- xobotyi/cc-foundry
- Path
plugins/grafana/skills/promql/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260521.aae5685, committed May 21, 2026
- Size
- 21,075 bytes
- Repository stars
- 23
- License
- MIT
PromQL query writing: selectors, operators, vector matching, functions, aggregations, histograms, subqueries, recording rules, alerting rules, and query optimization. Invoke whenever task involves any interaction with PromQL — writing, debugging, optimizing, reviewing, or explaining Prometheus queries for dashboards, alerts, recording rules, or ad-hoc exploration.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# PromQL
PromQL is a nested functional language for selecting and aggregating Prometheus time series. Every query is an
expression tree: selectors at the leaves, functions and operators at the nodes, a single root value (scalar, instant
vector, range vector, or string) at the top. Type discipline makes queries correct; cardinality awareness makes them
fast.
Authoritative reference for **writing PromQL queries** — dashboards, alerts, recording rules, exploration. The companion
`backend/prometheus` skill covers **instrumentation** (metric types, naming, labels, exporters). When both apply, use
`backend/prometheus` for emitting metrics and this skill for querying them.
## References
- **Selectors and data types** — [`${CLAUDE_SKILL_DIR}/references/selectors-and-types.md`] Expression types, instant and
range vector selectors, label matchers (`=`, `!=`, `=~`, `!~`), time durations, offset and `@` modifiers, staleness,
instant vs range queries, string and float literals
- **Operators** — [`${CLAUDE_SKILL_DIR}/references/operators.md`] Arithmetic, comparison, logical/set, vector matching
…Read the whole file at its exact version.
How to install
mdr add xobotyi/cc-foundry/promql@sha256:a839f8a6229dc8aeThe line at the top of this page pins the label git:20260521.aae5685, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_k3n6rkqsudvbct6y)
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Versions
The registry has recorded 1 version of this file, committed on May 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (21075 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
xobotyi/cc-foundry · 23 stars · license MIT · pushed 2026-10-31 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_k3n6rkqsudvbct6y GET https://markdownregistry.com/api/v1/resolve?ref=xobotyi/cc-foundry/promql GET https://markdownregistry.com/api/v1/blob/a839f8a6229dc8ae1a75c98cfcc7c51f8790aa07a8c5090abc5fe28048d6bdc6
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.