An implementation command that selects or receives a small Linear ticket, a work item from the project tracker, and prepares it for development in a separate worktree, an isolated copy of the repository.

Use it to start work on the highest-priority small ready-for-development ticket, or on a ticket you name, while checking for its implementation plan.

It reduces the manual work of finding the next suitable ticket, reading its context, and setting up a safe workspace.

ralph_impl — Command for Claude Code by jeffh/claude-plugins

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/jeffh/claude-plugins

Made for: Claude Code.

Or install humanlayer, the plugin that ships this one along with the rest of its 2 skills, 27 commands, 6 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/jeffh/claude-plugins/ralph_impl/github.svg)](https://agentmods.dev/commands/jeffh/claude-plugins/ralph_impl)

Your own site

<a href="https://agentmods.dev/commands/jeffh/claude-plugins/ralph_impl"><img src="https://agentmods.dev/badge/commands/jeffh/claude-plugins/ralph_impl/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/jeffh/claude-plugins/ralph_impl"><img src="https://agentmods.dev/badge/commands/jeffh/claude-plugins/ralph_impl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 491 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.

Model	Per session	Once invoked
Fable 5.1	$0.00010	$0.00491
Opus 5.5	$0.00004	$0.00196
Sonnet 5.5	$0.00002	$0.00098
Haiku 4.5	$0.00001	$0.00049

Measured 1mo ago against content hash 02b07b2fec33, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ralph_impl 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.

humanlayer/commands/ralph_impl.md · 34 lines

What it actually says

PART I - IF A TICKET IS MENTIONED

0c. use linear cli to fetch the selected item into thoughts with the ticket number - ./thoughts/shared/tickets/ENG-xxxx.md 0d. read the ticket and all comments to understand the implementation plan and any concerns

PART I - IF NO TICKET IS MENTIOND

read .claude/commands/linear.md 0a. fetch the top 10 priority items from linear in status "ready for dev" using the MCP tools, noting all items in the links section 0b. select the highest priority SMALL or XS issue from the list (if no SMALL or XS issues exist, EXIT IMMEDIATELY and inform the user) 0c. use linear cli to fetch the selected item into thoughts with the ticket number - ./thoughts/shared/tickets/ENG-xxxx.md 0d. read the ticket and all comments to understand the implementation plan and any concerns

PART II - NEXT STEPS

think deeply

move the item to "in dev" using the MCP tools 1a. identify the linked implementation plan document from the links section 1b. if no plan exists, move the ticket back to "ready for spec" and EXIT with an explanation

think deeply about the implementation

set up worktree for implementation: 2a. use the create-worktree skill to create a new worktree with the Linear branch name (ENG-XXXX) and base branch 2b. launch implementation session: humanlayer-nightly launch --model opus --dangerously-skip-permissions --dangerously-skip-permissions-timeout 15m --title "implement ENG-XXXX" -w ~/wt/humanlayer/ENG-XXXX "/implement_plan and when you are done implementing and all tests pass, read ./claude/commands/commit.md and create a commit, then read ./claude/commands/describe_pr.md and create a PR, then add a comment to the Linear ticket with the PR link"

think deeply, use TodoWrite to track your tasks. When fetching from linear, get the top 10 items by priority but only work on ONE item - specifically the highest priority SMALL or XS sized issue.

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.

1mo ago First seen · 34 lines · 10 tokens per session scan A 02b07b2fec33

Subscribe to this mod's changes

ralph_impl is a command published in the GitHub repository jeffh/claude-plugins (12 stars, last pushed 10d ago), licensed Apache-2.0. It adds 10 tokens to every session and 491 once invoked, about $0.0000 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.

Git and workflow Project management

Suggest the most likely next workflow action based on current context.

jayvee/aigon · 11 tokens

ralph_impl

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

What it actually says

PART I - IF A TICKET IS MENTIONED

PART I - IF NO TICKET IS MENTIOND

PART II - NEXT STEPS

What this file has done since we first saw it

Other commands, from other repositories

project

land

sync

claim

weekly-summary

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