ProductFlow: Skill for Claude Code

.agents/skills/trellis-start/SKILL.md

trellis-start is a skill for Claude Code, Codex from yuqie6/ProductFlow. It costs 73 tokens per session (668 once invoked), scanned A, original, MIT.

A session-start workflow for projects managed by Trellis, a system that tracks development tasks, project guidance, and work phases.

In plain words
What is it for?
Use it when starting or resuming a coding session, checking active tasks, discovering project guidelines, and deciding whether to plan, implement, or finish work.
Why use it?
It loads the current task, repository state, project rules, and workflow stage before coding begins, reducing the chance of working from outdated context.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions Codex.

This is yuqie6/ProductFlow's own configuration. It tells Claude Code and Codex how to work on ProductFlow itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ProductFlow configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 ./.trellis/scripts/get_context.py.

Reuse

Borrowing it

Nothing to install: this file belongs to yuqie6/ProductFlow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/yuqie6/ProductFlow/main/.agents/skills/trellis-start/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/yuqie6/ProductFlow

Made for: Claude Code, Codex.

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 trellis-start

README.md
[![agentmods](https://agentmods.dev/badge/skills/yuqie6/productflow/trellis-start/github.svg)](https://agentmods.dev/skills/yuqie6/productflow/trellis-start)
Your own site
<a href="https://agentmods.dev/skills/yuqie6/productflow/trellis-start"><img src="https://agentmods.dev/badge/skills/yuqie6/productflow/trellis-start/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 trellis-start

Your own site · 80×15
<a href="https://agentmods.dev/skills/yuqie6/productflow/trellis-start"><img src="https://agentmods.dev/badge/skills/yuqie6/productflow/trellis-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 668 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00073 $0.00668
Opus 5 $0.00036 $0.00334
Sonnet 5 $0.00015 $0.00134
Haiku 4.5 $0.00007 $0.00067

Measured 9d ago against content hash 79a5ba7a2aff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

trellis-start 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 9d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.agents/skills/trellis-start/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Start Session

Initialize a Trellis-managed development session. This platform has no session-start hook, so manually load the equivalent compact context by following these steps.


Step 1: Current state

Identity, git status, current task, active tasks, journal location.

python3 ./.trellis/scripts/get_context.py

If this output includes a line beginning Trellis update available:, copy the full line verbatim when summarizing session context. Do not shorten operational command hints.

Step 2: Workflow overview

Compact Phase Index, request triage rules, planning artifact contract, and the step-detail command.

python3 ./.trellis/scripts/get_context.py --mode phase

Full guide in .trellis/workflow.md (read on demand).

Step 3: Guideline indexes

Discover packages + spec layers, then read each relevant index file.

python3 ./.trellis/scripts/get_context.py --mode packages
cat .trellis/spec/guides/index.md
cat .trellis/spec/<package>/<layer>/index.md   # for each relevant layer

Index files list the specific guideline docs to read when you actually start coding.

Step 4: Decide next action

From Step 1 you know the current task and status. Check the task directory:

  • Active task status planning + no prd.md → Phase 1.1. Load the trellis-brainstorm skill.
  • Active task status planning + prd.md exists → stay in Phase 1. Lightweight tasks can be PRD-only; complex tasks need design.md + implement.md. Load the relevant Phase 1 step detail before task.py start.
  • Active task status in_progress → Phase 2 step 2.1. Load the step detail:
    python3 ./.trellis/scripts/get_context.py --mode phase --step 2.1 --platform codex
    
  • No active task → classify first. For simple conversation / small task, ask only whether this turn should create a Trellis task. For complex work, ask whether you may create a Trellis task and enter planning. If the user says no, skip Trellis for this session.

Read the full file on GitHub · 65 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. 9d ago First seen · 65 lines · 73 tokens per session scan A 79a5ba7a2aff

Subscribe to this mod's changes

trellis-start is a skill published in the GitHub repository yuqie6/ProductFlow (302 stars, last pushed 3d ago), licensed MIT. It adds 73 tokens to every session and 668 once invoked, about $0.0004 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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