A skill your agent uses when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .claude/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
skills CLI
$ npx skills add GanyuanRan/Aegis --skill communicating-concisely -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .agents/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add GanyuanRan/Aegis --skill communicating-concisely -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .cursor/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add GanyuanRan/Aegis --skill communicating-concisely -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .gemini/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
skills CLI
$ npx skills add GanyuanRan/Aegis --skill communicating-concisely -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .github/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add GanyuanRan/Aegis --skill communicating-concisely -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "communicating-concisely" agent skill from https://github.com/GanyuanRan/Aegis/tree/main/skills/communicating-concisely into .opencode/skills/communicating-concisely/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "communicating-concisely", then confirm the skill loads.
OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
Skill name
communicating-concisely
GitHub stars
1.3k
Used in
1 other repo
Token cost
~556 tokens
SKILL.md length
263 words
Files
1
Skills in repo
21
Repo updated
First seen
Licence
MIT
At a glance
A skill your agent uses when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
Works in 4 steps: Security warnings → Irreversible action confirmations → Multi-step sequences where fragment… → …
The user asks for caveman mode
SKILL.md covers Activation, Mode Rules, Auto-Clarity Exception and Deactivation, plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Communicating Concisely is an agent skill from GanyuanRan/Aegis. Use when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development. The repository describes itself as: Make AI coding agents architecture-aware: baseline-first, evidence-verified, drift-checked, and safe across long tasks. The licence is MIT.
When your agent uses it
The user asks for caveman mode
Brief responses
Compressed communication
Otherwise explicitly requests a much shorter answer
Example prompts
“/communicating-concisely”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
1Security warnings
2Irreversible action confirmations
3Multi-step sequences where fragment order risks misread
4User asks for clarification or repeats their question
What it can do on your machine
Read from SKILL.md and the folder at commit 7b7e955. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Communicating Concisely loads about 556 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 263 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~44
When it runs· the whole SKILL.md, loaded when a task matches
~556
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
Download SKILL.mdSave it as .claude/skills/communicating-concisely/SKILL.md (or your agent's skills folder).
name
communicating-concisely
description
Use when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
Communicating 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
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in GanyuanRan/Aegis, which our catalogue first saw on October 7, 2026.
Communicating Concisely next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
Communicating Concisely compared with similar skills
Skill
Stars
Used in
Tokens
Auto-check
Licence
Repo updated
Communicating Concisely this skillGanyuanRan/Aegis
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Iteratively improves a PR (GitHub), MR (GitLab), or shelved changelist (Perforce) until Greptile gives it a 5/5 confidence score with zero unresolved comments.
A skill your agent uses when touching retiring old logic, collapsing duplicate owners, removing fallbacks, or schema/persistence/source-of-truth boundaries; identify opportunities automatically…
A skill your agent uses when asked for first-principles or Occam's-razor review, or when high-risk decisions involve competing constraints, fallback growth, duplicate owners, or architecture…
A skill your agent uses when the user explicitly sets an Aegis goal with /aegis-goal, Aegis goal:, or asks to define goal, success evidence, stop condition, or task boundaries before work.
A skill your agent uses when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or deprecated domain term that needs active semantic modeling.
A skill your agent uses when the user asks to create, write, update, amend, supersede, or evaluate an ADR, architecture decision record, durable architecture decision, decision log, or baseline sync…
A skill your agent uses when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer. Communicating Concisely is an agent skill from GanyuanRan/Aegis. Use when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise explicitly requests a much shorter answer.
When should I use Communicating Concisely?
Communicating Concisely fits situations like: the user asks for caveman mode; brief responses; compressed communication; otherwise explicitly requests a much shorter answer.
How do I install Communicating Concisely in Claude Code?
Run `npx skills add GanyuanRan/Aegis --skill communicating-concisely -a claude-code`. Or copy the skill folder (skills/communicating-concisely in GanyuanRan/Aegis) into .claude/skills/communicating-concisely in your project. Claude Code loads it when a task matches its description.
How do I install Communicating Concisely in Codex?
Run `npx skills add GanyuanRan/Aegis --skill communicating-concisely -a codex`. Or copy the skill folder (skills/communicating-concisely in GanyuanRan/Aegis) into .agents/skills/communicating-concisely in your project. Codex loads it when a task matches its description.
Can I use Communicating Concisely in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add GanyuanRan/Aegis --skill communicating-concisely -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/communicating-concisely, .gemini/skills/communicating-concisely, .github/skills/communicating-concisely and .opencode/skills/communicating-concisely in your project.
What does Communicating Concisely need to run?
SKILL.md names no scripts, command-line tools or credentials: Communicating Concisely is instructions for the agent only.
Does Communicating Concisely access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Communicating Concisely safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Communicating Concisely use?
Communicating Concisely is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Communicating Concisely use?
About 556 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Communicating Concisely?
Skills that share tags, products or a category with Communicating Concisely: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Communicating Concisely?
GanyuanRan (a GitHub user) maintains it in GanyuanRan/Aegis, which has 1,330 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 9, 2026.
Source: GanyuanRan/Aegis on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
