parallel-work-recon

parallel-work-recon is a skill for Claude Code from randommonicle/claude-skills. It costs 192 tokens per session (1,070 once invoked), scanned A, original, Apache-2.0.

Repository instructions for work shared across multiple machines, sessions, or coding agents. They require checking remote branches, pull requests, and commit history before starting and again before committing.

In plain words
What is it for?
Use them on shared repositories when coordinating migrations, versions, commits, or other sequential identifiers across branches and agents.
Why use it?
They reduce the risk of using outdated repository information or taking an identifier that another worker has already claimed.

Skill for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: mentions subagents.

Part of the ash plugin — 43 skills, 3 hooks shipped together

Good fit Use them on shared repositories when coordinating migrations, versions, commits, or other sequential identifiers across branches and agents.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/randommonicle/claude-skills/parallel-work-recon
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 randommonicle/claude-skills --skill parallel-work-recon
Clone the repo
git clone --depth 1 https://github.com/randommonicle/claude-skills

Made for: Claude Code.

Or install ash, the plugin that ships this one along with the rest of its 43 skills, 3 hooks.

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 parallel-work-recon

README.md
[![agentmods](https://agentmods.dev/badge/skills/randommonicle/claude-skills/parallel-work-recon/github.svg)](https://agentmods.dev/skills/randommonicle/claude-skills/parallel-work-recon)
Your own site
<a href="https://agentmods.dev/skills/randommonicle/claude-skills/parallel-work-recon"><img src="https://agentmods.dev/badge/skills/randommonicle/claude-skills/parallel-work-recon/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 parallel-work-recon

Your own site · 80×15
<a href="https://agentmods.dev/skills/randommonicle/claude-skills/parallel-work-recon"><img src="https://agentmods.dev/badge/skills/randommonicle/claude-skills/parallel-work-recon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 192 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,070 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 $0.00192 $0.01070
Opus 5 $0.00096 $0.00535
Sonnet 5 $0.00038 $0.00214
Haiku 4.5 $0.00019 $0.00107

Measured 10d ago against content hash 6b15a9ce1e1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

parallel-work-recon 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 10d 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.

parallel-work-recon/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Parallel-work recon

Eight incidents of duplicated work, colliding identifiers, and edits landing in trees that no longer existed — plus five more where a session or subagent silently edited the wrong checkout. All from one cause: treating a snapshot of repo state as a lease on it. Layer: session-boundary hub; the session-start half is mechanised by the SessionStart hook (hooks/session-recon.mjs), which injects live state at session open.

The recon

At session start AND again immediately before any commit, merge, or identifier claim:

git fetch --quiet
git log --oneline --decorate --all -8
gh pr list --state open

The pre-commit re-run is the sharp edge. The session-start check (even the hook's) is a snapshot, not a lease — another machine or session may have pushed while you worked. A session once nearly rebuilt a fully-shipped PR because it trusted a stale handover; another inferred a migration was "phantom" when it was simply unpushed (git ls-remote before inferring absence).

Sequential identifiers

Migration numbers, version strings, and anything else claimed by "next in sequence" collide silently under parallel work — git flags nothing when two branches ship the same numbers. Claim by scanning ALL refs including remote, at merge time, not just when the file is created. A 009*-style glob can misread the ceiling; list and sort, don't pattern-guess.

Worktrees and checkouts

  • One session per working copy. Two sessions on one clone halves the snapshot's half-life.
  • Use git -C <path> exclusively for worktree git operations — a cd between tool calls silently lands elsewhere.
  • Any prompt handed to a subagent that must work in a worktree states the absolute path and a branch-check first step; audit the paths in its report to confirm which checkout it actually edited (a subagent once edited seven files on main).
  • A stale dev server serves the old tree; restart it after switching checkouts.
  • Staging is per absolute path: git add app/src in the wrong checkout stages nothing you meant.

Read the full file on GitHub · 77 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. 10d ago First seen · 77 lines · 0 tokens per session scan A 6b15a9ce1e1a

Subscribe to this mod's changes

parallel-work-recon is a skill published in the GitHub repository randommonicle/claude-skills (23 stars, last pushed 4d ago), licensed Apache-2.0. It adds 192 tokens to every session and 1,070 once invoked, about $0.0010 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.

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