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profiling-statement-fingerprints

profiling-statement-fingerprints is a skill for Claude Code, Codex from cockroachlabs/cockroachdb-skills. It costs 59 tokens per session (4,057 once invoked), scanned A, original, Apache-2.0.

A tool for examining historical CockroachDB query statistics. It groups similar SQL statements into fingerprints and ranks them by delays, resource use, conflicts, or errors.

In plain words
What is it for?
Finding slow or expensive queries, investigating plan changes, spotting full table scans and possible missing indexes, and comparing query resource use by application or database.
Why use it?
Recurring slow queries and performance regressions can be difficult to find from a single incident. This analysis shows which query patterns repeatedly consume time or database resources.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

not rated 23repo 3mo ago A scan 59 tokens original Apache-2.0

Good fit Finding slow or expensive queries, investigating plan changes, spotting full table scans and possible missing indexes, and comparing query resource use by application or database.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints
View source ↗ cockroachlabs/cockroachdb-skills
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.

Any agent
npx skills add cockroachlabs/cockroachdb-skills --skill profiling-statement-fingerprints
Clone the repo
git clone --depth 1 https://github.com/cockroachlabs/cockroachdb-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for profiling-statement-fingerprints

README.md
[![agentmods](https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints/github.svg)](https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints)
Your own site
<a href="https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints/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.

agentmods 80×15 button for profiling-statement-fingerprints

Your own site · 80×15
<a href="https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/profiling-statement-fingerprints.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,057 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00059 $0.04057
Opus 5.5 $0.00024 $0.01623
Sonnet 5.5 $0.00012 $0.00811
Haiku 4.5 $0.00006 $0.00406

Measured 2mo ago against content hash 1deb919f77c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

profiling-statement-fingerprints 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 2mo 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

skills/cockroachdb-observability-and-diagnostics/profiling-statement-fingerprints/SKILL.md · 330 lines

How it starts

The opening of the file, as written. The whole thing — 330 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Profiling Statement Fingerprints

Analyzes historical statement performance patterns using aggregated SQL statistics to identify slow, resource-intensive, or error-prone query fingerprints. Uses crdb_internal.statement_statistics for time-windowed analysis of latency, CPU, contention, admission delays, and failure rates - entirely via SQL without requiring DB Console access.

Complement to triaging-live-sql-activity: This skill analyzes historical patterns; for immediate triage of currently running queries, see triaging-live-sql-activity.

When to Use This Skill

  • Identify slowest statement fingerprints over past hours/days/weeks
  • Find queries with high CPU consumption, contention, or admission waits
  • Investigate performance regressions or plan changes
  • Locate full table scans or missing indexes via index recommendations
  • Analyze resource consumption by application or database
  • SQL-only historical analysis without DB Console access

For immediate incident response: Use triaging-live-sql-activity to triage currently running queries and cancel runaway work. For transaction-level analysis: Use profiling-transaction-fingerprints to analyze retry patterns, commit latency, and statement composition at the transaction boundary. For background job monitoring: Use monitoring-background-jobs for long-running schema changes and automatic jobs excluded from statement statistics.

Prerequisites

  • SQL connection to CockroachDB cluster
  • VIEWACTIVITY or VIEWACTIVITYREDACTED cluster privilege for cluster-wide visibility
  • Statement statistics collection enabled (default): sql.stats.automatic_collection.enabled = true

Check collection status:

SHOW CLUSTER SETTING sql.stats.automatic_collection.enabled;  -- Should return: true

See triaging-live-sql-activity permissions reference for RBAC setup (same privileges).

Read the full file on GitHub · 330 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 2mo ago First seen · 330 lines · 59 tokens per session scan A 1deb919f77c5

Subscribe to this mod's changes

profiling-statement-fingerprints is a skill published in the GitHub repository cockroachlabs/cockroachdb-skills (23 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 59 tokens to every session and 4,057 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 2026-08-30.

DatabasesDebugging
Related

profiling-statement-fingerprints compared with skills from other repositories

profiling-statement-fingerprints next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
profiling-statement-fingerprintscockroachlabs/cockroachdb-skillsSkill233mo agoApache-2.0A59Claude Code, Codex
reproduce-buggoogleapis/mcp-toolboxSkill17kyesterdayApache-2.0A130Claude Code, Codex
triage-issuesgoogleapis/mcp-toolboxSkill17kyesterdayApache-2.0A164Claude Code, Codex
postgresql-indexingprowler-cloud/prowlerSkill15kyesterdayApache-2.0A108Claude Code
graphjin-evaldosco/graphjinSkill3.2k5d agoApache-2.0A27Claude Code, Codex
axiom-audit-grdb-performanceCharlesWiltgen/AxiomSkill1.3kyesterdayMITA43Codex
django-perf-reviewgetsentry/skillsSkill1.1kyesterdayApache-2.0A55Claude Code