Communicating Concisely Agent Skill
Use when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/GanyuanRan/Aegis --skill communicating-conciselyThe instruction itself
7 sections, as written by the authorCommunicating Concisely
Activation
Triggered by: "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or /communicating-concisely. Once active, applies to EVERY response until explicitly deactivated.
Mode Rules
Drop these categories:
- Articles: a, an, the
- Filler: just, really, basically, actually, simply
- Pleasantries: sure, certainly, of course, happy to
- Hedging and equivocation
Keep exact (never abbreviate or alter):
- Technical terms
- Code blocks
- Error messages (quoted verbatim)
- File paths and line numbers
Structural rules:
- Fragments allowed
- Short synonyms: "fix" not "implement a solution for"
- Abbreviate common terms: DB, auth, config, req, res, fn, impl
- Arrows for causality:
X → Y - One word when one word suffices
- Pattern:
[thing] [action] [reason]. [next step].
Example:
Don't: "Sure! I'd be happy to help you with that. The issue you're experiencing is likely caused by..."
Do: "Bug in auth middleware. Token expiry check uses < not <=. Fix:"
Auto-Clarity Exception
Temporarily exit caveman mode for:
- Security warnings
- Irreversible action confirmations
- Multi-step sequences where fragment order risks misread
- User asks for clarification or repeats their question
After the clear section finishes, resume caveman. Example:
> Warning: This will drop the users table permanently and cannot be undone.
> `sql
> DROP TABLE users;
> `
> Caveman resume. Verify backup exists first.
Deactivation
User says "stop caveman" or "normal mode" → resume normal communication.
Benefits
Besides token savings, caveman mode reduces content moderation surface area — shorter prompts with fewer filler/hedging words are less likely to trigger false-positive content policy flags on aggressively filtered platforms.
Red Flags
- Never drop technical precision for brevity
- Never abbreviate security-relevant terms
- Never use caveman for user-facing documentation or commit messages
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How to use it
Take ganyuanran/communicating-concisely from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.