hunting-orm-and-query-builder-injection

hunting-orm-and-query-builder-injection is a skill for Claude Code from UnboundCompute/security-agent-skills. It costs 177 tokens per session (1,979 once invoked), scanned A, original, MIT.

A security review for database code that uses an object-relational mapper or query builder. It traces untrusted input into raw query fragments, column or table names, sort directions, and structured filters instead of safely bound values.

In plain words
What is it for?
Use it to inspect request handling and data-access code for injection through raw-query methods, dynamic identifiers, sort fields, filter objects, and update objects.
Why use it?
These tools usually protect values, but they may not protect query structure. An attacker can alter the query when client input controls operators, identifiers, or raw SQL.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the security-agent-skills plugin — 194 skills shipped together

Good fit Use it to inspect request handling and data-access code for injection through raw-query methods, dynamic identifiers, sort fields, filter objects, and update objects.

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Install with agentmods
npx agentmods add skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection
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 UnboundCompute/security-agent-skills --skill hunting-orm-and-query-builder-injection
Clone the repo
git clone --depth 1 https://github.com/UnboundCompute/security-agent-skills

Made for: Claude Code.

Or install security-agent-skills, the plugin that ships this one along with the rest of its 194 skills.

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 hunting-orm-and-query-builder-injection

README.md
[![agentmods](https://agentmods.dev/badge/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection/github.svg)](https://agentmods.dev/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection)
Your own site
<a href="https://agentmods.dev/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection"><img src="https://agentmods.dev/badge/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection/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 hunting-orm-and-query-builder-injection

Your own site · 80×15
<a href="https://agentmods.dev/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection"><img src="https://agentmods.dev/badge/skills/unboundcompute/security-agent-skills/hunting-orm-and-query-builder-injection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 177 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,979 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 $0.00177 $0.01979
Opus 5 $0.00088 $0.00989
Sonnet 5 $0.00035 $0.00396
Haiku 4.5 $0.00018 $0.00198

Measured 6d ago against content hash 357228a2e61d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

hunting-orm-and-query-builder-injection 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 6d 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.

skills/hunting-orm-and-query-builder-injection/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hunting ORM and query-builder injection: when the abstraction is not the safeguard

Teams reach for an object-relational mapper or a query builder partly to avoid injection, then assume the abstraction handles it. It handles values: a bound parameter is safe no matter what it contains. It does not handle structure. The moment untrusted input becomes a column name, a sort direction, a raw fragment, or an operator inside a filter object, the placeholder machinery is bypassed and the query means something the developer did not write. Classic string-concatenation injection is largely gone from ORM codebases; the live risk moved to the escape hatches and the structured inputs. You find it by separating the calls that bind values from the calls that accept structure and tracing untrusted input into the latter.

When to use

  • Data access goes through an object-relational mapper or query builder, not hand-written statements.
  • Untrusted input reaches a raw-query method, a column, table, or sort argument, or a filter object.
  • Request bodies are passed as filter or update objects into the data layer.

Scope check

Test injection only against databases and applications you own or are authorized to assess, on non-production data. Confirming an operator-injection read can expose records outside your test scope. If you can't name the authorization, stop.

The loop

  1. Map the data-access sinks and separate them. Inventory where the mapper or builder is used, then split the calls into two groups: parameterized calls that bind values, and escape hatches that accept structure. The escape hatches are raw-query methods, methods that take a column, table, or order argument, and methods that accept a structured filter or update object. Only the second group can be injected.

  2. Trace untrusted input into raw-query escape hatches. A raw method takes a query string or a fragment. If untrusted input is concatenated or interpolated into that string, it is classic injection even though the file is full of ORM calls. Parameter placeholders inside a raw fragment protect the values only; anything spliced in as text is live.

Read the full file on GitHub · 135 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.

  1. 6d ago First seen · 135 lines · 177 tokens per session scan A 357228a2e61d

Subscribe to this mod's changes

hunting-orm-and-query-builder-injection is a skill published in the GitHub repository UnboundCompute/security-agent-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 177 tokens to every session and 1,979 once invoked, about $0.0009 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 2026-09-05.

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