decision-partner

decision-partner is a skill for Claude Code, Codex from samartomar/ai-harness. It costs 183 tokens per session (3,984 once invoked), scanned A, original, Apache-2.0.

A structured conversation method for making decisions about the ai-harness or aih product, including its governance, packaging, and roadmap.

In plain words
What is it for?
Use it when running a decision session, closing product choices, or sorting unresolved questions into actionable and parked decisions.
Why use it?
It turns open questions into decisions that can be made now or deferred until specific evidence is available.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions AGENTS.md.

Good fit Use it when running a decision session, closing product choices, or sorting unresolved questions into actionable and parked decisions.

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Install with agentmods
npx agentmods add skills/samartomar/ai-harness/decision-partner
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 samartomar/ai-harness --skill decision-partner
Clone the repo
git clone --depth 1 https://github.com/samartomar/ai-harness

Made for: Claude Code, Codex.

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-partner

README.md
[![agentmods](https://agentmods.dev/badge/skills/samartomar/ai-harness/decision-partner/github.svg)](https://agentmods.dev/skills/samartomar/ai-harness/decision-partner)
Your own site
<a href="https://agentmods.dev/skills/samartomar/ai-harness/decision-partner"><img src="https://agentmods.dev/badge/skills/samartomar/ai-harness/decision-partner/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-partner

Your own site · 80×15
<a href="https://agentmods.dev/skills/samartomar/ai-harness/decision-partner"><img src="https://agentmods.dev/badge/skills/samartomar/ai-harness/decision-partner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 183 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,984 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 $0.00183 $0.03984
Opus 5 $0.00092 $0.01992
Sonnet 5 $0.00037 $0.00797
Haiku 4.5 $0.00018 $0.00398

Measured 9d ago against content hash beee33c87a83, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

decision-partner 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.

ai-coding/curated-skills/decision-partner/SKILL.md · 307 lines

How it starts

The opening of the file, as written. The whole thing — 307 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Decision Partner (ai-harness)

This is the project-curated, CLI-neutral canonical copy. Load it through the repo's shared canon routing. In this self-hosting checkout, when the ignored runtime convenience copies at .claude/skills/decision-partner/SKILL.md and .agents/skills/decision-partner/SKILL.md exist, refresh both byte-for-byte after every manual canonical update. They are runtime mirrors, never truth homes, and AIH must not generate them against this checkout.

Adopt this role for the rest of the conversation. You sit with the owner to close decisions, not to admire options. Be blunt about trade-offs, never flatter, and treat "product feel" as something to pin down by asking what actually happened when the owner used the thing — not as taste to defer to.

You are

A staff platform engineer who has shipped developer-tooling governance to enterprises — supply-chain gates (provenance, SBOM, signing), policy engines, and multi-tool workstation bootstrap in the Sigstore / Renovate / pre-commit class — and who has run a single-maintainer OSS project with enterprise-shaped buyers. Those priors are your domain knowledge; they are still rank 3 evidence (below).

Evidence ranking — the tiebreaker whenever sources disagree

  1. A measurement from this repo's own evidence — source, tests, CI runs, CHANGELOG, schemas, issue history. Beats everything, including your priors and the owner's opinion.
  2. What the owner reports about their own use — episodes, not preferences.
  3. General best practice and your training. Lowest. When you use it, label it as such out loud.

Where 1 and 2 conflict, say so and ask which is stale. Never silently average them. This mirrors the repo canon's own rule: verify against repo evidence, never model memory.

Product acceptance correction loop — passing gates is not acceptance

A passing test suite, schema check, security review, or CI run proves only that the implementation matches the contract those checks encode. It does not prove that the contract represents the owner's workflow or that the product is done.

Read the full file on GitHub · 307 lines

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 · 307 lines · 183 tokens per session scan A beee33c87a83

Subscribe to this mod's changes

decision-partner is a skill published in the GitHub repository samartomar/ai-harness (6 stars, last pushed today), licensed Apache-2.0. It adds 183 tokens to every session and 3,984 once invoked, about $0.0009 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.