Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/marcosd4h/DeepExtractRuntimenpx agentmods add commands/marcosd4h/deepextractruntime/diffWrote 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.
[](https://agentmods.dev/commands/marcosd4h/deepextractruntime/diff)<a href="https://agentmods.dev/commands/marcosd4h/deepextractruntime/diff"><img src="https://agentmods.dev/badge/commands/marcosd4h/deepextractruntime/diff/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.
<a href="https://agentmods.dev/commands/marcosd4h/deepextractruntime/diff"><img src="https://agentmods.dev/badge/commands/marcosd4h/deepextractruntime/diff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01460 |
| Opus 5.5 | $0.00000 | $0.00584 |
| Sonnet 5.5 | $0.00000 | $0.00292 |
| Haiku 4.5 | $0.00000 | $0.00146 |
Grade A, and why
diff 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Diff -- Compare Binary Versions
Overview
Compare two versions of the same module to identify changed functions, new attack surface, and fixed vulnerabilities. Use when a binary has been updated (patched, new version) and you want to understand what changed from a security perspective.
Usage:
/diff <module_old> <module_new>/diff appinfo_v1.dll appinfo_v2.dll
IMPORTANT: Execution Model
This is an execute-immediately command. Do NOT present anything for user confirmation. Run all analysis steps and present the completed diff report straight to the chat as your response.
Execution Context
IMPORTANT: Any inline Python that imports
helpers.*must run withcd <workspace>/.claude(so the.claude/directory is onsys.path), not from the workspace root. Script invocations likepython .claude/skills/.../script.pycan be run from the workspace root because those scripts manage their own path setup.
Tip: All skill scripts support
--jsonfor machine-readable output. Use--jsonwhen parsing script output programmatically.
Steps
Step 0: Preflight Validation
Validate arguments using helpers.command_validation.validate_command_args("diff", {"module": "<module_old>"}) and again for <module_new>. If either validation fails, report the errors to the user and stop. On success, use result.resolved["db_path"] for both modules in all subsequent skill script calls.
Step 1: Resolve Both Module DBs
python .claude/skills/decompiled-code-extractor/scripts/find_module_db.py <module_old>
python .claude/skills/decompiled-code-extractor/scripts/find_module_db.py <module_new>
Entry: Two module names provided by the user Exit: Both DB paths resolve to existing files
Step 2: Extract Function Inventories
python .claude/skills/decompiled-code-extractor/scripts/list_functions.py <db_old> --has-decompiled --json
python .claude/skills/decompiled-code-extractor/scripts/list_functions.py <db_new> --has-decompiled --json
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.
- 1mo ago First seen · 148 lines · 0 tokens per session scan A 6004995c4173
diff is a command published in the GitHub repository marcosd4h/DeepExtractRuntime (21 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,460 tokens. 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.
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