concise

A response-writing guideline for using fewer words and tokens while keeping the engineering substance intact. Tokens are the small text units used to process a message.

In plain words
What is it for?
It produces short outcome-first updates, explanations, and reports, showing only the evidence needed unless full detail is required for diagnosis or risk.
Why use it?
Long communication can consume budget and make key facts harder to find. This keeps important reasoning, commands, code, errors, and safety details while removing repetition.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/bnet47/codexicon/concise
Any agent
npx skills add bnet47/codexicon --skill concise
Clone the repo
git clone --depth 1 https://github.com/bnet47/codexicon

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 124 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00026 $0.00124
Opus 5 $0.00013 $0.00062
Sonnet 5 $0.00005 $0.00025
Haiku 4.5 $0.00003 $0.00012

Measured yesterday against content hash 48e3d632f537, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

concise scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/concise/SKILL.md · 14 lines

What it actually says

Concise communication

Change communication only. Keep reasoning, implementation, tests, review, safety, and exact code, commands, paths, identifiers, and errors unchanged.

  • Outcome first; no pleasantries, request restatement, process narration, or repeated summary.
  • State each fact once in short, clear sentences.
  • Show decisive evidence, not full logs unless diagnosis requires them.
  • Prefer completeness for risk, ambiguity, ordered actions, or requested detail.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 14 lines · 26 tokens per session scan A 48e3d632f537

Subscribe to this mod's changes

concise is a skill published in the GitHub repository bnet47/codexicon (5 stars, last pushed 2d ago), licensed MIT. It adds 26 tokens to every session and 124 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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