capture-decision

A decision-recording skill that saves a choice together with the reasoning behind it so it can be found later. It covers decisions such as changing direction, rejecting an option, or choosing a proposed approach.

In plain words
What is it for?
Use it when a user makes or changes a decision, rejects an alternative, chooses an approach, or asks to remember why something was done.
Why use it?
It prevents important project reasoning from disappearing into chat history or being forgotten later.

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/nbkdoesntknowcoding/mnema/capture-decision
Any agent
npx skills add nbkdoesntknowcoding/mnema --skill capture-decision
Clone the repo
git clone --depth 1 https://github.com/nbkdoesntknowcoding/mnema

Made for: Claude Code, Codex.

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 363 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00046 $0.00363
Opus 5 $0.00023 $0.00181
Sonnet 5 $0.00009 $0.00073
Haiku 4.5 $0.00005 $0.00036

Measured 2d ago against content hash d27f8456bd2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

capture-decision 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 2d ago.

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.

plugins/mnema-brain/skills/capture-decision/SKILL.md · 39 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 39 lines · 46 tokens per session scan A d27f8456bd2b

Subscribe to this mod's changes

capture-decision is a skill published in the GitHub repository nbkdoesntknowcoding/mnema (6 stars, last pushed 7d ago), with no licence file. It adds 46 tokens to every session and 363 once invoked, about $0.0002 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.

Related

Other skills, from other repositories

lightweight-charts

Use when working with TradingView's lightweight-charts — creating charts, adding series (Line/Area/Bar/Candlestick/Histogram), configuring time and price scales, streaming realtime or historical data, panes, markers, per-bar/per-point colors, tooltips, coordinate conversion, custom plugins or primitives, non-financial…

tradingview/lightweight-charts · 106 tokens

docs-svg-kit

Author SVG figures for Grida docs — diff-able, version-controlled vector diagrams embedded in doc pages instead of screenshots. Provides reusable primitives (selection chrome, size badges, anchor pins, resize cursors, click ripples), color/typography tokens, a starter template, and finished examples to crib from.…

gridaco/grida · 145 tokens

editor-perf

Guides performance investigation, benchmarking, and optimization of the Grida Canvas web editor (TypeScript reducer, Immer, React hooks). Use when profiling reducer dispatch cost, diagnosing slow interactions (drag, resize, color change), writing or running editor benchmarks, instrumenting with PerfObserver, or…

gridaco/grida · 69 tokens

sdk-seam

Discipline for the seam between two SDKs (or two sides of one contract) that the same hand writes. The failure mode: "we own both sides" produces dirty contracts no foreign reviewer would accept. The exercise: pretend the other side is FFI, IPC, or a network protocol you cannot rewrite. Spawn an adversarial subagent…

gridaco/grida · 142 tokens

deck-open-slide-canvas

锁死 1920×1080 画布, React 组件级自由组合, 不绑模板.

nexu-io/html-anything · 28 tokens

agent-system

Grida AI agent system work: @grida/daemon (DaemonServer, loopback HTTP perimeter, files/workspaces, secrets store, daemon discovery) and @grida/agent (the agent tenant: sessions, providers/BYOK, runtime/tool execution, skills discovery, prompts, tiers, sandbox hosts). Use for packages/grida-daemon/…

gridaco/grida · 127 tokens