dwarf-expert SKILL.md skillA

dwarf-expert from trailofbits/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add trailofbits/skills/dwarf-expert@git:20260803.ec2450d

Pins git:20260803.ec2450d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
trailofbits/skills
Path
plugins/dwarf-expert/skills/dwarf-expert/SKILL.md
Versions recorded
3
Latest version
git:20260803.ec2450d, committed Aug 3, 2026
First version recorded
Jan 14, 2026
Size
6,020 bytes
Repository stars
8,043
License
CC-BY-SA-4.0

Analyzes DWARF debug information in compiled binaries. Use when inspecting .debug_* sections, DIE trees, or DW_TAG_/DW_AT_ entries with dwarfdump/llvm-dwarfdump or readelf, verifying debug info with llvm-dwarfdump --verify, answering DWARF standard questions, or writing code that parses DWARF (libdwarf, pyelftools, gimli).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# DWARF Expert

Expertise for DWARF debug info: parsing and searching it, verifying its
integrity, answering questions about the standard, and writing code that
consumes it. Out of scope: runtime debugging (use gdb/lldb), reverse
engineering beyond the DWARF sections (use Ghidra/IDA), and compiler-specific
DWARF generation bugs.

# Authoritative Sources

When precision matters, look standard details up instead of answering from memory:

1. **dwarfstd.org** — the official specification. Web-search specific sections,
   e.g. "DWARF5 DW_TAG_subprogram attributes site:dwarfstd.org".
2. **LLVM** — `llvm/lib/DebugInfo/DWARF/` is a reliable reference implementation:
   `DWARFDie.cpp` (DIE and attribute access), `DWARFUnit.cpp` (compilation units),
   `DWARFDebugLine.cpp` (line tables), `DWARFVerifier.cpp` (validation).
3. **libdwarf** — the reference C implementation at github.com/davea42/libdwarf-code.

# Parsing and Searching with dwarfdump

Prefer `dwarfdump` over `readelf` for DWARF-specific work. Two implementations
exist — libdwarf's `dwarfdump` and LLVM's `llvm-dwarfdump` — with different
options, and a bare `dwarfdump` command may be either: check `dwarfdump --version`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add trailofbits/skills/dwarf-expert@sha256:c4623d2d9c5a31c7

The line at the top of this page pins the label git:20260803.ec2450d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_rv53anpanr67vvaw.svg)](https://markdownregistry.com/a/art_rv53anpanr67vvaw)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Jan 14, 2026 and Aug 3, 2026, about one every 100 days.

versioncommittedcommitsizeaudit
git:20260803.ec2450d latest2026-08-03 ec2450d 6,020 BA view · diff
git:20260428.debfb292026-04-28 debfb29 4,901 BA view · diff
git:20260114.695119c2026-01-14 695119c 4,921 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6020 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

trailofbits/skills · 8,043 stars · license CC-BY-SA-4.0 · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_rv53anpanr67vvaw
GET https://markdownregistry.com/api/v1/resolve?ref=trailofbits/skills/dwarf-expert
GET https://markdownregistry.com/api/v1/blob/c4623d2d9c5a31c7722a293a96038817631e7d511f256613b4cbfa417c24466a

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in trailofbits/skills

Other files named dwarf-expert

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