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spekka: Skill for Claude Code

.claude/skills/spekka-backend-queries/SKILL.md

Backend Queries is a skill for Claude Code from johnreitano/spekka. It costs 24 tokens per session (209 once invoked), scanned A, original, MIT.

Guidance for writing and improving database queries, which are requests that read or change stored application data.

In plain words
What is it for?
Use it when building backend features that query databases, choosing fields and indexes, loading related records, managing transactions, setting time limits, or caching expensive results.
Why use it?
It helps avoid common problems such as unsafe SQL, repeated database requests, slow queries, inconsistent related changes, and runaway operations.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Claude Code.

This is johnreitano/spekka's own configuration. It tells Claude Code how to work on spekka itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything spekka configures →

not rated 5repo 9mo ago A scan 24 tokens original MIT
View source ↗ johnreitano/spekka
Reuse

Borrowing it

Nothing to install: this file belongs to johnreitano/spekka. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/johnreitano/spekka/main/.claude/skills/spekka-backend-queries/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/johnreitano/spekka

Made for: Claude Code.

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 Backend Queries

README.md
[![agentmods](https://agentmods.dev/badge/skills/johnreitano/spekka/spekka-backend-queries/github.svg)](https://agentmods.dev/skills/johnreitano/spekka/spekka-backend-queries)
Your own site
<a href="https://agentmods.dev/skills/johnreitano/spekka/spekka-backend-queries"><img src="https://agentmods.dev/badge/skills/johnreitano/spekka/spekka-backend-queries/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 Backend Queries

Your own site · 80×15
<a href="https://agentmods.dev/skills/johnreitano/spekka/spekka-backend-queries"><img src="https://agentmods.dev/badge/skills/johnreitano/spekka/spekka-backend-queries.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 209 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 $0.00024 $0.00209
Opus 5.5 $0.00010 $0.00084
Sonnet 5.5 $0.00005 $0.00042
Haiku 4.5 $0.00002 $0.00021

Measured 2mo ago against content hash 07909df713ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Backend Queries 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.

.claude/skills/spekka-backend-queries/SKILL.md · 19 lines

What it actually says

Backend Queries

This Skill provides Claude Code with specific guidance on how it should handle backend queries.

Instructions

  • Prevent SQL Injection: Always use parameterized queries or ORM methods; never interpolate user input into SQL strings
  • Avoid N+1 Queries: Use eager loading or joins to fetch related data in a single query instead of multiple queries
  • Select Only Needed Data: Request only the columns you need rather than using SELECT * for better performance
  • Index Strategic Columns: Index columns used in WHERE, JOIN, and ORDER BY clauses for query optimization
  • Use Transactions for Related Changes: Wrap related database operations in transactions to maintain data consistency
  • Set Query Timeouts: Implement timeouts to prevent runaway queries from impacting system performance
  • Cache Expensive Queries: Cache results of complex or frequently-run queries when appropriate
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 · 19 lines · 24 tokens per session scan A 07909df713ba

Subscribe to this mod's changes

Backend Queries is a skill published in the GitHub repository johnreitano/spekka (5 stars, last pushed 9mo ago), licensed MIT. It adds 24 tokens to every session and 209 once invoked, about $0.0001 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.

Backend and APIsDatabases
Related

Backend Queries compared with skills from other repositories

Backend Queries next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Backend Queriesjohnreitano/spekkaSkill59mo agoMITA24Claude Code
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field-service-sobject-create-configureforcedotcom/sf-skillsSkill1.1k2d agoApache-2.0A74Claude Code
durable-objectsfcakyon/claude-codex-settingsSkill1.2kyesterdayApache-2.0A22Claude Code
nornicdb-grpcorneryd/NornicDBSkill923yesterdayMITA98Claude Code, Codex
nw-ddd-eventsourcingnWave-ai/nWaveSkill631yesterdayMITA38Claude Code