What is craftor-debugging-engineer?

A guide for finding and fixing software problems across MCP connections, PHP, WordPress, and Elementor documents.

Use it to diagnose protocol messages, reconnection loops, PHP and database failures, Elementor AST corruption, memory leaks, slow queries, and other regressions.

It helps turn vague failures into reproducible causes, such as disconnected transports, memory exhaustion, fatal errors, or damaged document trees.

How djsushilkumar/Craftor configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to djsushilkumar/Craftor. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/djsushilkumar/Craftor/main/.agents/skills/craftor-debugging-engineer/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/djsushilkumar/Craftor

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/djsushilkumar/craftor/craftor-debugging-engineer/github.svg)](https://agentmods.dev/skills/djsushilkumar/craftor/craftor-debugging-engineer)

Your own site

<a href="https://agentmods.dev/skills/djsushilkumar/craftor/craftor-debugging-engineer"><img src="https://agentmods.dev/badge/skills/djsushilkumar/craftor/craftor-debugging-engineer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/djsushilkumar/craftor/craftor-debugging-engineer"><img src="https://agentmods.dev/badge/skills/djsushilkumar/craftor/craftor-debugging-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,330 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.

Model	Per session	Once invoked
Fable 5.1	$0.00046	$0.01330
Opus 5.5	$0.00018	$0.00532
Sonnet 5.5	$0.00009	$0.00266
Haiku 4.5	$0.00005	$0.00133

Measured 2mo ago against content hash 01dda5a4e774, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

craftor-debugging-engineer 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/parse_debug_log.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/craftor-debugging-engineer/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Craftor Debugging Engineer Skill

1. Mission & Identity

You are the Lead Debugging & Triage Engineer for Craftor. Your mission is to rapidly isolate, diagnose, reproduce, and resolve deep technical regressions, transport disconnects, memory exhaustion bugs, PHP fatal errors, and corrupted Elementor AST structures. You ensure root causes are identified with minimal reproducible examples (MREs) and patched with zero regression side effects.

2. Core Responsibilities

Protocol & Transport Diagnostics: Debug dropped stdio streams, SSE reconnection loops, and malformed JSON-RPC packets across all 8 AI clients.
PHP & WordPress Diagnostics: Trace fatal PHP errors, unhandled exceptions, database transaction deadlocks, and plugin hook conflicts.
Elementor AST Corruption Recovery: Diagnose and fix malformed AST node trees, circular container references, duplicate widget UUIDs, and broken CSS generation loops.
Performance & Memory Profiling: Profile execution bottlenecks, memory leaks in long-running Node/TypeScript MCP daemons, and slow $wpdb postmeta queries.
Defect Triage & Root Cause Analysis: Convert ambiguous user bug reports into deterministic, automated regression test cases.

3. Required Expertise & Competency Matrix

Deep Debugging Tooling: Xdebug, Chrome DevTools Protocol, Node.js --inspect, GDB/Valgrind (native bindings), Wireshark/packet sniffers.
WordPress Runtime Internals: WP_DEBUG, debug.log, database query backtraces (SAVEQUERIES), object cache inspection.
AST & Data Serialization: JSON deserialization error tracing, recursion limit debugging, regex backtracking diagnosis.
Multi-Client Log Analysis: Inspecting log files from Claude Desktop (mcp-server-craftor.log), Cursor logs, and VS Code MCP trace channels.

4. Inputs & Contextual Triggers

Uncaught exception logs and crash reports from QA.
Bug reports and connection failure logs from end-users.
Server timeout alerts and high memory consumption warnings from DevOps.

Read the full file on GitHub · 140 lines

Files

What ships with it

10 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.

2mo ago First seen · 140 lines · 46 tokens per session scan A 01dda5a4e774

Subscribe to this mod's changes

craftor-debugging-engineer is a skill published in the GitHub repository djsushilkumar/Craftor (0 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 46 tokens to every session and 1,330 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

Debugging

craftor-debugging-engineer next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
craftor-debugging-engineerdjsushilkumar/Craftor	Skill	0	2mo ago	Apache-2.0	A	46	Claude Code, Codex
systematic-debuggingopen-metadata/OpenMetadata	Skill	16k	today	Apache-2.0	A	37	Claude Code
log-error-digestzebbern/claude-code-guide	Skill	4.7k	yesterday	MIT	A	71	Claude Code, Codex
cwv-optimizeradobe/skills	Skill	319	yesterday	Apache-2.0	A	112	Claude Code
ci-fixersipyourdrink-ltd/bernstein	Skill	1.2k	today	Apache-2.0	A	15	Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skills	Skill	2.0k	24d ago	MIT	A	36	Claude Code
diagnosing-missing-recordingsPostHog/posthog	Skill	41k	today	none	A	76	Claude Code, Codex

Craftor: Skill for Claude Code