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sqli-sql-injection

sqli-sql-injection is a skill for Claude Code, Codex from JustineDevs/premortem. It costs 39 tokens per session (4,232 once invoked), scanned A, a copy of sqli-sql-injection, Apache-2.0.

A security testing guide for finding and exploiting SQL injection, a flaw where untrusted input changes a database query.

In plain words
What is it for?
It supports authorized testing of authentication, filtering, sorting, reporting, and database-specific SQL injection paths.
Why use it?
It helps uncover unsafe input handling, including less obvious cases such as blind attacks that reveal results indirectly or second-order attacks triggered later.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

not rated 2repo 1mo ago A scan 39 tokens copy · 100% Apache-2.0

Good fit It supports authorized testing of authentication, filtering, sorting, reporting, and database-specific SQL…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/justinedevs/premortem/sqli-sql-injection
View source ↗ JustineDevs/premortem premortem.jstn.site
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 JustineDevs/premortem --skill sqli-sql-injection
Clone the repo
git clone --depth 1 https://github.com/JustineDevs/premortem

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 sqli-sql-injection

README.md
[![agentmods](https://agentmods.dev/badge/skills/justinedevs/premortem/sqli-sql-injection.svg)](https://agentmods.dev/skills/justinedevs/premortem/sqli-sql-injection)
Your own site
<a href="https://agentmods.dev/skills/justinedevs/premortem/sqli-sql-injection"><img src="https://agentmods.dev/badge/skills/justinedevs/premortem/sqli-sql-injection.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,232 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 100% copy Near-identical to another mod 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 $0.00039 $0.04232
Opus 5 $0.00019 $0.02116
Sonnet 5 $0.00008 $0.00846
Haiku 4.5 $0.00004 $0.00423

Measured 3d ago against content hash 35e31bc52ade, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sqli-sql-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 3d 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

This is a copy

100% identical to sqli-sql-injection — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/sqli-sql-injection/SKILL.md · 490 lines

How it starts

The opening of the file, as written. The whole thing — 490 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SKILL: SQL Injection — Expert Attack Playbook

AI LOAD INSTRUCTION: Advanced SQLi techniques. Assumes basic UNION/error/boolean-blind fundamentals known. Focuses on: per-database exploitation, out-of-band exfiltration, second-order injection, parameterized query bypass scenarios, filter evasion, and escalation to OS. For real-world CVE cases, SMB/DNS OOB exfiltration, INSERT/UPDATE injection patterns, and framework-specific exploitation (ThinkPHP, Django GIS), load the companion SCENARIOS.md.

  • ghost-bits-cast-attack when the backend is Java with Jackson and your SQL keywords are WAF-blocked — Jackson's charToHex table is indexed by ch & 0xFF, so a Unicode character like 丰 (U+4E30) resolves to hex digit 0 inside a \uXXXX escape sequence, letting you smuggle UNION, SELECT, 1, etc. without the WAF ever seeing them

1. QUICK START

Extended Scenarios

Also load SCENARIOS.md when you need:

  • SMB out-of-band exfiltration via LOAD_FILE + UNC paths (Windows MySQL)
  • KEY injection / URI injection / non-parameter injection points
  • INSERT/DELETE/UPDATE statement injection differences
  • ThinkPHP5 array key injection (updatexml error-based)
  • Django GIS Oracle utl_inaddr.get_host_name CVE
  • ORDER BY / LIMIT injection techniques

Advanced Reference

Also load SQLMAP_ADVANCED.md when you need:

  • SQLMap tamper scripts matrix and WAF bypass tamper chain recipes (space2comment, between, charencode, etc.)
  • --technique, --risk/--level combinations and --second-url for second-order injection
  • --os-shell / --os-pwn OS-level exploitation via SQLMap
  • INSERT/UPDATE/DELETE injection patterns with data exfiltration examples
  • GraphQL + SQL injection (batched queries, nested field injection, mutation injection)
  • DB-specific advanced functions: PostgreSQL dollar-sign quoting, MSSQL linked servers, Oracle DBMS_PIPE/DBMS_SCHEDULER

Read the full file on GitHub · 490 lines

Files

What ships with it

2 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. 3d ago First seen · 490 lines · 39 tokens per session scan A 35e31bc52ade

Subscribe to this mod's changes

sqli-sql-injection is a skill published in the GitHub repository JustineDevs/premortem (2 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 39 tokens to every session and 4,232 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to sqli-sql-injection, differing in 0 lines, and is treated as a copy.

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