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Claude Agent SDK Technical Specification

Version: 1.0.0 Protocol Version: 2024-11-05 Last Updated: 2026-01-10

Table of Contents

  1. Overview
  2. Architecture

File Editing Engines Audit: Codex vs Gemini-CLI vs OpenCode

This document analyzes how file editing works in three AI coding assistants, highlighting the unique approaches and tricks each uses.


Executive Summary

Feature Codex Gemini-CLI OpenCode

File Editing Engines Audit: Codex vs Gemini-CLI vs OpenCode

This document analyzes how file editing works in three AI coding assistants, highlighting the unique approaches and tricks each uses.


Executive Summary

Feature Codex Gemini-CLI OpenCode
#!/usr/bin/env ruby
# frozen_string_literal: true
# Check JavaScript manifests/lockfiles for Wiz "Shai Hulud 2.0" compromised
# packages.
#
# Fetches the official package list from Wiz's public IOC repo and scans every
# `pnpm-lock.yaml`, `yarn.lock`, `package-lock.json`, `npm-shrinkwrap.json`, and
# `package.json` under the repository. Reports any compromised packages found
# along with the manifest/lockfile path.
@SamSaffron
SamSaffron / test.rb
Created November 10, 2025 00:02
env_lookup.rb
# frozen_string_literal: true
require "benchmark"
require "memory_profiler"
require "active_support"
require "active_support/core_ext/object/blank"
def test_fast
@cache = ENV["TESTING"].presence if !defined?(@cache)
@cache
end
#!/usr/bin/env ruby
require "psych"
require "psych/pure"
yaml_source = <<~YAML
---
before_array: value1
# Comment before the problematic array
flow_array_with_comment: [
#!/usr/bin/env ruby
require "psych"
require "psych/pure"
yaml_source = <<~YAML
hierarchy:
- name: "osfamily/major release"
paths:
# Comment above first item
@SamSaffron
SamSaffron / reply.md
Created October 24, 2025 01:28
reply.md

[LOG] [CWLCompositorResource] New wl_surface with id 44 at 55b760b26480 [LOG] [CXDGWMBase] New xdg_positioner at 55b760499710 [LOG] [CXDGWMBase] New xdg_surface at 55b760a71830 [LOG] [CXDGSurfaceResource] xdg_surface 55b760a71830 gets a popup 55b760221f80 owner 0 [LOG] CWLSurface 55b760b28980 called init() [LOG] GetPosition with constraint [Vector2D: x: 0, y: 0] [Vector2D: x: 2580, y: 1080] and parent [Vector2D: x: 0, y: 0] [LOG] [CXDGPopupResource] Popup 55b760221f80 gets unconstrained to [Vector2D: x: 2428, y: 34] [Vector2D: x: 148, y: 134] [LOG] New popup at 55b760033f20 [LOG] [CXDGSurfaceResource] xdg_surface 55b760a71830 requests geometry 4x4 148x134 [LOG] [CWLCompositorResource] New wl_region with id 49 at 55b76035ec40

import {
arrow,
autoPlacement,
computePosition,
flip,
hide,
inline,
limitShift,
offset,
shift,