decision-log

decision-log is a skill for Claude Code, Codex from ulises-jeremias/agent-toolkit. It costs 32 tokens per session (190 once invoked), scanned A, original, MIT.

A lightweight record for project, product, or operational decisions that do not need a full architecture decision record. It captures the decision, reason, date, owner, and related references.

In plain words
What is it for?
Use it to document decisions from meetings or project discussions and link them to related work or notes.
Why use it?
It preserves why a decision was made without requiring a long technical document.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Part of the agent-toolkit-complete plugin — 116 skills shipped together

Good fit Use it to document decisions from meetings or project discussions and link them to related work or notes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ulises-jeremias/agent-toolkit/decision-log
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.

Any agent
npx skills add ulises-jeremias/agent-toolkit --skill decision-log
Clone the repo
git clone --depth 1 https://github.com/ulises-jeremias/agent-toolkit

Made for: Claude Code, Codex.

Or install agent-toolkit-complete, the plugin that ships this one along with the rest of its 116 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for decision-log

README.md
[![agentmods](https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/decision-log/github.svg)](https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/decision-log)
Your own site
<a href="https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/decision-log"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/decision-log/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for decision-log

Your own site · 80×15
<a href="https://agentmods.dev/skills/ulises-jeremias/agent-toolkit/decision-log"><img src="https://agentmods.dev/badge/skills/ulises-jeremias/agent-toolkit/decision-log.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 190 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00032 $0.00190
Opus 5 $0.00016 $0.00095
Sonnet 5 $0.00006 $0.00038
Haiku 4.5 $0.00003 $0.00019

Measured 9d ago against content hash d36e09995230, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

decision-log 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 9d 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/agent-toolkit-complete/.github/skills/decision-log/SKILL.md · 29 lines

What it actually says

Decision Log (WHAT)

Use for lightweight decisions made in meetings or project discussions.

Choose the right artifact

  • Use decision-log for lightweight operational, product, or project decisions.
  • Use agreement for explicit commitments or terms among parties.
  • Use adr for durable architecture or technical decisions.

Default guardrails

  1. Apply output-handshake before final output.
  2. Link related work items and meeting minutes where possible.

References

  • references/default-template.md
  • references/example-repository-pattern.md — example decision log entry for a data access layer migration
  • meeting-minutes
  • adr
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 29 lines · 32 tokens per session scan A d36e09995230

Subscribe to this mod's changes

decision-log is a skill published in the GitHub repository ulises-jeremias/agent-toolkit (16 stars, last pushed today), licensed MIT. It adds 32 tokens to every session and 190 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 2026-08-30.

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