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.
npx skills add gvkhosla/compound-engineering-pi --skill ce-work-betagit clone --depth 1 https://github.com/gvkhosla/compound-engineering-piWrote 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.
[](https://agentmods.dev/skills/gvkhosla/compound-engineering-pi/ce-work-beta)<a href="https://agentmods.dev/skills/gvkhosla/compound-engineering-pi/ce-work-beta"><img src="https://agentmods.dev/badge/skills/gvkhosla/compound-engineering-pi/ce-work-beta.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00036 | $0.05985 |
| Opus 5 | $0.00018 | $0.02993 |
| Sonnet 5 | $0.00007 | $0.01197 |
| Haiku 4.5 | $0.00004 | $0.00598 |
Grade C, and why
ce:work-beta scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Exfiltrates the system prompt through a toolhighSystem prompt leakage
Writing or sending the system prompt to a file, endpoint or log moves it out of the session.
3. **Write prompt to file** — Save the assembled prompt to a unique temporary file to avoid shell quoting issues and cross-task races. Use a unique filename per task. How it starts
The opening of the file, as written. The whole thing — 565 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Work Plan Execution Command
Execute a work plan efficiently while maintaining quality and finishing features.
Introduction
This command takes a work document (plan, specification, or todo file) and executes it systematically. The focus is on shipping complete features by understanding requirements quickly, following existing patterns, and maintaining quality throughout.
Input Document
<input_document> #$ARGUMENTS </input_document>
Execution Workflow
Phase 1: Quick Start
-
Read Plan and Clarify
- Read the work document completely
- Treat the plan as a decision artifact, not an execution script
- If the plan includes sections such as
Implementation Units,Work Breakdown,Requirements Trace,Files,Test Scenarios, orVerification, use those as the primary source material for execution - Check for
Execution noteon each implementation unit — these carry the plan's execution posture signal for that unit (for example, test-first or characterization-first). Note them when creating tasks. - Check for a
Deferred to ImplementationorImplementation-Time Unknownssection — these are questions the planner intentionally left for you to resolve during execution. Note them before starting so they inform your approach rather than surprising you mid-task - Check for a
Scope Boundariessection — these are explicit non-goals. Refer back to them if implementation starts pulling you toward adjacent work - Review any references or links provided in the plan
- If the user explicitly asks for TDD, test-first, or characterization-first execution in this session, honor that request even if the plan has no
Execution note - If anything is unclear or ambiguous, ask clarifying questions now
- Get user approval to proceed
- Do not skip this - better to ask questions now than build the wrong thing
-
Setup Environment
First, check the current branch:
current_branch=$(git branch --show-current) default_branch=$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's@^refs/remotes/origin/@@') # Fallback if remote HEAD isn't set if [ -z "$default_branch" ]; then default_branch=$(git rev-parse --verify origin/main >/dev/null 2>&1 && echo "main" || echo "master") fi
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.
- 7d ago First seen · 565 lines · 36 tokens per session scan C de4890ed5a7d
ce:work-beta is a skill published in the GitHub repository gvkhosla/compound-engineering-pi (51 stars, last pushed 4mo ago), licensed MIT. It adds 36 tokens to every session and 5,985 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (exfiltrates the system prompt through a tool). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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