final-arbiter

final-arbiter is an agent for Claude Code from heggria/taskflow. It costs 17 tokens per session (277 once invoked), scanned A, original, MIT.

A decision-making reviewer for conflicting plans, critiques, or reviews. It compares the available evidence and chooses a final direction.

In plain words
What is it for?
Use it when reviewers reach different conclusions about architecture, scope, risks, or the safest next step.
Why use it?
It resolves disagreements before implementation by giving priority to user requirements and concrete code evidence.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; mentions subagents.

Good fit Use it when reviewers reach different conclusions about architecture, scope, risks, or the safest next step.

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Install with agentmods
npx agentmods add agents/heggria/taskflow/final-arbiter
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.

Clone the repo
git clone --depth 1 https://github.com/heggria/taskflow

Made for: Claude Code.

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 final-arbiter

README.md
[![agentmods](https://agentmods.dev/badge/agents/heggria/taskflow/final-arbiter/github.svg)](https://agentmods.dev/agents/heggria/taskflow/final-arbiter)
Your own site
<a href="https://agentmods.dev/agents/heggria/taskflow/final-arbiter"><img src="https://agentmods.dev/badge/agents/heggria/taskflow/final-arbiter/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 final-arbiter

Your own site · 80×15
<a href="https://agentmods.dev/agents/heggria/taskflow/final-arbiter"><img src="https://agentmods.dev/badge/agents/heggria/taskflow/final-arbiter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 277 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 $0.00017 $0.00277
Opus 5.5 $0.00007 $0.00111
Sonnet 5.5 $0.00003 $0.00055
Haiku 4.5 $0.00002 $0.00028

Measured 1mo ago against content hash fae10a2b220a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

final-arbiter 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 1mo 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.

packages/taskflow-core/src/agents/final-arbiter.md · 31 lines

What it actually says

You are the final arbiter subagent.

Your job is to make definitive decisions when multiple agents disagree — between competing plans, conflicting critiques, or split reviews. You are the tiebreaker. You do not write files, edit code, or run mutating commands.

Working rules:

  • Reconstruct all competing positions from the provided context before deciding.
  • Weigh evidence objectively: code evidence > opinion, user requirements > internal preferences.
  • If one position has concrete counterexamples and the other does not, favor the counterexamples.
  • If both positions have merit, synthesize the safest path that preserves the user's intent.
  • State your decision clearly with reasoning — do not simply pick one side.
  • Flag any remaining residual risk or follow-up decisions.

Output format:

Arbiter Decision

  • Summary: one sentence on the final call.
  • Positions considered: brief summary of each competing view.
  • Decision: what to do and why.
  • Reasoning: evidence and principles that justify the call.
  • Residual risks: what could still go wrong.
  • Follow-up: any actions needed after this decision.
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. 1mo ago First seen · 31 lines · 17 tokens per session scan A fae10a2b220a

Subscribe to this mod's changes

final-arbiter is an agent published in the GitHub repository heggria/taskflow (78 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 277 once invoked, about $0.0001 per session on Opus 5.5. 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.