Learn-skills.dev codex

Execute Codex CLI for code generation, analysis, web search and web fetch. Two capabilities - (1) Code Generation with deep reasoning, (2) Web Search & Fetch for online research.

install

source · Clone the upstream repo

git clone https://github.com/NeverSight/learn-skills.dev

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/NeverSight/learn-skills.dev "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/skills-md/acking-you/myclaude-skills/codex" ~/.claude/skills/neversight-learn-skills-dev-codex-fda7e0 && rm -rf "$T"

manifest: data/skills-md/acking-you/myclaude-skills/codex/SKILL.md

source content

Codex CLI Integration

Two specialized capabilities for different use cases.

Capability 1: Code Generation

Deep code analysis and generation with maximum reasoning power.

When to Use

Complex code analysis requiring deep understanding
Large-scale refactoring across multiple files
Automated code generation with safety controls
Tasks requiring specialized reasoning models

Default Configuration

Model:
```
gpt-5.2-codex
```
Reasoning:
```
xhigh
```
(maximum thinking depth)

Command Pattern

codex e -m gpt-5.2-codex -c model_reasoning_effort=xhigh \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  -C <workdir> \
  "<task>"

Parameters

```
<task>
```
(required): Task description, supports
```
@file
```
references
```
-m <model>
```
: Override model (e.g.,
```
gpt-5.1-codex
```
,
```
gpt-5
```
)
```
-c model_reasoning_effort=<level>
```
: Override reasoning (low/medium/high/xhigh)
```
-C <workdir>
```
: Working directory (default: current)

Examples

Basic code analysis:

codex e -m gpt-5.2-codex -c model_reasoning_effort=xhigh \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "explain @src/main.ts"

Refactoring with custom model:

codex e -m gpt-5.1-codex -c model_reasoning_effort=high \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "refactor @src/utils for performance"

Multi-file analysis:

codex e -m gpt-5.2-codex -c model_reasoning_effort=xhigh \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  -C /path/to/project \
  "analyze @. and find security issues"

Capability 2: Web Search & Fetch

Online research with web search and page content fetching.

When to Use

Online research and documentation lookup
Fetch and summarize specific web pages (GitHub repos, docs, articles)
Current information retrieval
API documentation search
Technology comparison and recommendations

Default Configuration

Model:
```
gpt-5.1-codex
```
Reasoning:
```
high
```
Web search: enabled

Command Pattern

codex e -m gpt-5.1-codex -c model_reasoning_effort=high \
  --enable web_search_request \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "<task>"

Parameters

```
<task>
```
(required): Search query or research task
```
-m <model>
```
: Override model
```
-c model_reasoning_effort=<level>
```
: Override reasoning (low/medium/high/xhigh)
```
--enable web_search_request
```
: Enable web search (required for this capability)

Alternative: Config File

Add to

~/.codex/config.toml

[features]
web_search_request = true

Examples

Fetch GitHub repo:

codex e -m gpt-5.1-codex -c model_reasoning_effort=high \
  --enable web_search_request \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "Fetch and summarize https://github.com/user/repo"

Documentation search:

codex e -m gpt-5.1-codex -c model_reasoning_effort=high \
  --enable web_search_request \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "find the latest React 19 hooks documentation"

Technology research:

codex e -m gpt-5.1-codex -c model_reasoning_effort=high \
  --enable web_search_request \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "compare Vite vs Webpack for React projects in 2024"

Session Resume

Both capabilities support session resumption for multi-turn conversations.

Resume Command

codex e resume <session_id> "<follow-up task>"

Example

# First session (code generation)
codex e -m gpt-5.2-codex -c model_reasoning_effort=xhigh \
  --dangerously-bypass-approvals-and-sandbox \
  --skip-git-repo-check \
  "add comments to @utils.js"
# Output includes: thread_id in JSON output

# Continue the conversation
codex e resume <session_id> "now add type hints"

Notes

Requires Codex CLI installed and authenticated
```
@file
```
syntax references files relative to working directory
```
@.
```
references entire working directory
JSON output available with
```
--json
```
flag for programmatic use

All commands use

--dangerously-bypass-approvals-and-sandbox

for automation

Use
```
--skip-git-repo-check
```
to work in any directory