← Back to Skills Marketplace
ckchzh

Antlr4

by BytesAgain2 · GitHub ↗ · v3.0.2 · MIT-0
cross-platform ✓ Security Clean
354
Downloads
0
Stars
1
Active Installs
12
Versions
Install in OpenClaw
/install antlr4
Description
Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Antlr4 concepts, best practices, and implementation patterns.
README (SKILL.md)

Antlr4

Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Antlr4 concepts, best practices, and implementation patterns. No API keys or credentials required.

Commands

Command Description
intro intro reference
quickstart quickstart reference
patterns patterns reference
debugging debugging reference
performance performance reference
security security reference
migration migration reference
cheatsheet cheatsheet reference

Output Format

All commands output plain-text reference documentation via heredoc. No external API calls, no credentials needed, no network access.

Powered by BytesAgain | bytesagain.com | [email protected]

Usage Guidance
This skill appears to be a harmless, read-only Antlr4 reference implemented as a small bash script. It does not require credentials or network access. You can install/enable it with low risk, but as with any third-party skill, review updates before accepting new versions (in case future changes introduce network access or credential use). Note only minor non-security inconsistencies (script VERSION differs from registry metadata), which don't affect behavior.
Capability Analysis
Type: OpenClaw Skill Name: antlr4 Version: 3.0.2 The antlr4 skill is a static documentation reference tool. The shell script (scripts/script.sh) uses heredocs to output plain-text information about Antlr4 concepts, patterns, and best practices. There is no evidence of network activity, file system modification, credential harvesting, or malicious instructions in SKILL.md.
Capability Assessment
✓ Purpose & Capability
The skill is described as an Antlr4 reference and its files (SKILL.md and a bash script) only provide documentation output. There are no environment variables, binaries, or credentials required that would be unrelated to a documentation/reference tool.
✓ Instruction Scope
SKILL.md explicitly states all commands output plain-text via heredoc and require no external API/network access. The included script prints static documentation for the documented commands and does not read other files, environment variables, or network endpoints.
✓ Install Mechanism
There is no install spec; this is instruction-only with a small helper script. Nothing in the manifest downloads or extracts remote archives or installs packages.
✓ Credentials
The skill requests no environment variables, credentials, or config paths. The script does not access or expose any secrets or external credentials.
✓ Persistence & Privilege
always is false and the skill does not request or modify agent/system configuration. It does not attempt to persist state or elevate privileges.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install antlr4
  3. After installation, invoke the skill by name or use /antlr4
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v3.0.2
Fix description
v3.0.1
Fix description
v3.0.0
Clean package
v2.0.1
update
v2.0.0
v2.5 standard: Use-when desc, homepage, source, security fix
v2.3.5
yaml-fix+quality
v2.3.4
yaml-fix+quality
v2.3.3
Quality upgrade
v2.3.2
Standards compliance: unique content, no template text
v2.3.1
Quality improvement: better docs, examples, cleaner text
v2.3.0
Quality fixes: removed third-party references, aligned docs with implementation
v1.0.0
Initial release
Metadata
Slug antlr4
Version 3.0.2
License MIT-0
All-time Installs 1
Active Installs 1
Total Versions 12
Frequently Asked Questions

What is Antlr4?

Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Antlr4 concepts, best practices, and implementation patterns. It is an AI Agent Skill for Claude Code / OpenClaw, with 354 downloads so far.

How do I install Antlr4?

Run "/install antlr4" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Antlr4 free?

Yes, Antlr4 is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does Antlr4 support?

Antlr4 is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Antlr4?

It is built and maintained by BytesAgain2 (@ckchzh); the current version is v3.0.2.

More Skills
self-improving agent
Captures learnings, errors, and corrections to enable continuous improvement. Use when: (1) A command or operation fails unexpectedly, (2) User corrects Clau...
⬇ 463283 · by pskoett
Skill Vetter
Security-first skill vetting for AI agents. Use before installing any skill from ClawdHub, GitHub, or other sources. Checks for red flags, permission scope, and suspicious patterns.
⬇ 259410 · by spclaudehome
Polymarket
Query Polymarket prediction markets. Check odds, find trending markets, search events, track price movements.
⬇ 232503 · by joelchance
Self-Improving + Proactive Agent
Self-reflection + Self-criticism + Self-learning + Self-organizing memory. Agent evaluates its own work, catches mistakes, and improves permanently. Use when...
⬇ 200423 · by ivangdavila
Github
Interact with GitHub using the `gh` CLI. Use `gh issue`, `gh pr`, `gh run`, and `gh api` for issues, PRs, CI runs, and advanced queries.
⬇ 191115 · by steipete
ontology
Typed knowledge graph for structured agent memory and composable skills. Use when creating/querying entities (Person, Project, Task, Event, Document), linkin...
⬇ 190156 · by oswalpalash

💬 Comments