A guide for writing IDAPython scripts in IDA Pro, a tool for examining compiled programs without their source code.

Use it to inspect disassembly and decompiled code, examine functions, types, memory, cross-references, segments, and IDA databases.

It helps automate binary analysis while using IDA Pro’s current Python modules and APIs.

idapython — Skill for Claude Code and Codex by VibRev: A guide for writing IDAPython scripts in IDA Pro…

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.

agentmods

npx agentmods add skills/vibrev/ida-headless-mcp/idapython

Any agent

npx skills add VibRev/ida-headless-mcp --skill idapython

Clone the repo

git clone --depth 1 https://github.com/VibRev/ida-headless-mcp

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/vibrev/ida-headless-mcp/idapython.svg)](https://agentmods.dev/skills/vibrev/ida-headless-mcp/idapython)

Your own site

<a href="https://agentmods.dev/skills/vibrev/ida-headless-mcp/idapython"><img src="https://agentmods.dev/badge/skills/vibrev/ida-headless-mcp/idapython.svg" alt="Measured on agentmods" height="20"></a>

Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,547 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00077	$0.01547
Opus 5	$0.00039	$0.00773
Sonnet 5	$0.00015	$0.00309
Haiku 4.5	$0.00008	$0.00155

Measured 5d ago against content hash 421e209611d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

idapython 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 5d 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 idapython — 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.

skills/idapython/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IDAPython

Use modern ida_* modules. Avoid legacy idc module.

Module Router

Task	Module	Key Items
Bytes/memory	`ida_bytes`	`get_bytes`, `patch_bytes`, `get_flags`, `create_*`
Functions	`ida_funcs`	`func_t`, `get_func`, `add_func`, `get_func_name`
Names	`ida_name`	`set_name`, `get_name`, `demangle_name`
Types	`ida_typeinf`	`tinfo_t`, `apply_tinfo`, `parse_decl`
Decompiler	`ida_hexrays`	`decompile`, `cfunc_t`, `lvar_t`, ctree visitor
Segments	`ida_segment`	`segment_t`, `getseg`, `add_segm`
Xrefs	`ida_xref`	`xrefblk_t`, `add_cref`, `add_dref`
Instructions	`ida_ua`	`insn_t`, `op_t`, `decode_insn`
Stack frames	`ida_frame`	`get_frame`, `define_stkvar`
Iteration	`idautils`	`Functions()`, `Heads()`, `XrefsTo()`, `Strings()`
UI/dialogs	`ida_kernwin`	`msg`, `ask_*`, `jumpto`, `Choose`
Database info	`ida_ida`	`inf_get_*`, `inf_is_64bit()`
Analysis	`ida_auto`	`auto_wait`, `plan_and_wait`
Flow graphs	`ida_gdl`	`FlowChart`, `BasicBlock`
Register tracking	`ida_regfinder`	`find_reg_value`, `reg_value_info_t`

Core Patterns

Iterate functions

for ea in idautils.Functions():
    name = ida_funcs.get_func_name(ea)
    func = ida_funcs.get_func(ea)

Iterate instructions in function

for head in idautils.FuncItems(func_ea):
    insn = ida_ua.insn_t()
    if ida_ua.decode_insn(insn, head):
        print(f"{head:#x}: {insn.itype}")

Cross-references

for xref in idautils.XrefsTo(ea):
    print(f"{xref.frm:#x} -> {xref.to:#x} type={xref.type}")

Read/write bytes

data = ida_bytes.get_bytes(ea, size)
ida_bytes.patch_bytes(ea, b"\x90\x90")

Names

name = ida_name.get_name(ea)
ida_name.set_name(ea, "new_name", ida_name.SN_NOCHECK)

Decompile function

cfunc = ida_hexrays.decompile(ea)
if cfunc:
    print(cfunc)  # pseudocode
    for lvar in cfunc.lvars:
        print(f"{lvar.name}: {lvar.type()}")

Read the full file on GitHub · 155 lines

Files

What ships with it

60 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.

5d ago First seen · 155 lines · 77 tokens per session scan A 421e209611d0

Subscribe to this mod's changes

idapython is a skill published in the GitHub repository VibRev/ida-headless-mcp (15 stars, last pushed 7d ago), licensed Apache-2.0. It adds 77 tokens to every session and 1,547 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to idapython, differing in 0 lines, and is treated as a copy.

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idapython

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

This is a copy

How it starts

IDAPython

Module Router

Core Patterns

Iterate functions

Iterate instructions in function

Cross-references

Read/write bytes

Names

Decompile function

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

analyzing-golang-malware-with-ghidra

Reverse Engineering & Binary Analysis

IDA-Skill

analyzing-golang-malware-with-ghidra

performing-fuzzing-with-aflplusplus

analyzing-golang-malware-with-ghidra