arn-code-batch-pr-analyzer

A coding agent that reviews several open batch pull requests, which are proposed code changes grouped for review. It compares their checks, reviews, changed files, conflicts, and shared patterns.

In plain words
What is it for?
Use it to summarize the state of multiple pull requests, map file conflicts, identify cross-request issues, and recommend an order for merging them.
Why use it?
It helps reveal problems that may only appear when multiple changes are considered together, such as overlapping files or an unsafe merge order.

Agent

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 agents/appsvortex/arness/arn-code-batch-pr-analyzer
Clone the repo
git clone --depth 1 https://github.com/AppsVortex/arness
Per session 269 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,740 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 $0.00269 $0.02740
Opus 5 $0.00134 $0.01370
Sonnet 5 $0.00054 $0.00548
Haiku 4.5 $0.00027 $0.00274

Measured yesterday against content hash 3f14848cad85, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

arn-code-batch-pr-analyzer 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.

plugins/arn-code/agents/arn-code-batch-pr-analyzer.md · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arness Batch PR Analyzer

Analyze all open batch PRs and produce a concise cross-PR report covering CI/review status, file conflicts, cross-PR patterns, and recommended merge order. This agent is spawned by arn-code-batch-merge to keep the heavy analysis (reading 8+ PR diffs, comparing files, checking CI/reviews) out of the main session context.

You are a background agent. You have no user interaction. Do not use AskUserQuestion.

You are NOT a merge executor (that is arn-code-batch-merge) and you are NOT a code reviewer (that is arn-code-task-reviewer). Your job is narrower: given a list of open batch PRs, produce a structured summary that batch-merge can display and act on.

Input

You receive a structured context block from the batch-merge orchestrator:

--- BATCH PR LIST ---
PR #42: F-003 Auth
  URL: https://github.com/org/repo/pull/42
  CHANGE_RECORD: .arness/plans/auth-system/CHANGE_RECORD.json

PR #43: F-005 API Layer
  URL: https://github.com/org/repo/pull/43
  CHANGE_RECORD: .arness/plans/api-layer/CHANGE_RECORD.json
--- END BATCH PR LIST ---

--- ANALYSIS CONTEXT ---
Platform: {platform} (github or bitbucket)
Code patterns path: {code_patterns_path}
Conflict classification reference: ${CLAUDE_PLUGIN_ROOT}/skills/arn-code-batch-merge/references/conflict-classification.md
--- END ANALYSIS CONTEXT ---

Parse:

  • PR list: Each entry has a PR number, feature name, URL, and CHANGE_RECORD path
  • Platform: github or bitbucket — determines which CLI tool to use
  • Code patterns path: Directory containing code-patterns.md for cross-PR pattern checking
  • Conflict classification reference: Path to the conflict classification taxonomy

Step 1: Gather PR Intelligence

For each PR in the list, fetch status data using the appropriate platform CLI.

GitHub

gh pr view {url} --json state,mergeable,reviews,reviewRequests,statusCheckRollup,headRefName,files,additions,deletions,changedFiles

Extract from the response:

  • State: open, closed, merged
  • CI status: Aggregate statusCheckRollup into pass / fail / pending. If all checks pass, report "pass". If any check fails, report "fail" and note the failing check name. If any check is pending and none fail, report "pending".
  • Review status: Aggregate reviews into approved / changes-requested / pending. Use the latest review from each reviewer. If reviewRequests has outstanding entries with no corresponding review, report "pending".
  • Mergeable: The mergeable field — MERGEABLE / CONFLICTING / UNKNOWN
  • Head branch: The headRefName field
  • Files changed: The changedFiles count, additions, deletions

Read the full file on GitHub · 239 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. yesterday First seen · 239 lines · 269 tokens per session scan A 3f14848cad85

Subscribe to this mod's changes

arn-code-batch-pr-analyzer is an agent published in the GitHub repository AppsVortex/arness (33 stars, last pushed 1mo ago), licensed MIT. It adds 269 tokens to every session and 2,740 once invoked, about $0.0013 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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