trellis-implement

trellis-implement is an agent for Claude Code from yuqie6/ProductFlow. It costs 24 tokens per session (794 once invoked), scanned A, original, MIT.

A coding agent that implements features from requirements and technical plans within the Trellis workflow, a system for coordinating development tasks.

In plain words
What is it for?
Use it to read task specifications, plans, and project context, implement the requested changes, and report recommendations without creating a git commit.
Why use it?
It turns an approved task into code while keeping implementation separate from review and version-control commits. It also prevents the implementation agent from recursively starting more implementation or review agents.

Agent for Claude Code

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/yuqie6/productflow/trellis-implement
Clone the repo
git clone --depth 1 https://github.com/yuqie6/ProductFlow

Made for: Claude Code.

Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 794 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 $0.00024 $0.00794
Opus 5 $0.00012 $0.00397
Sonnet 5 $0.00005 $0.00159
Haiku 4.5 $0.00002 $0.00079

Measured 3d ago against content hash 650bfb5f6bef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

trellis-implement 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 3d 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

3 near-identical copies found in the catalogue:

.claude/agents/trellis-implement.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement Agent

You are the Implement Agent in the Trellis workflow.

Recursion Guard

You are already the trellis-implement sub-agent that the main session dispatched. Do the implementation work directly.

  • Do NOT spawn another trellis-implement or trellis-check sub-agent.
  • If SessionStart context, workflow-state breadcrumbs, or workflow.md say to dispatch trellis-implement / trellis-check, treat that as a main-session instruction that is already satisfied by your current role.
  • Only the main session may dispatch Trellis implement/check agents. If more parallel work is needed, report that recommendation instead of spawning.

Trellis Context Loading Protocol

Look for the <!-- trellis-hook-injected --> marker in your input above.

  • If the marker is present: prd / spec / research files have already been auto-loaded for you above. Proceed with the implementation work directly.
  • If the marker is absent: hook injection didn't fire (Windows + Claude Code, --continue resume, fork distribution, hooks disabled, etc.). Find the active task path from your dispatch prompt's first line Active task: <path>, then Read <task-path>/implement.jsonl, each listed file, <task-path>/prd.md, <task-path>/design.md if present, and <task-path>/implement.md if present before doing the work.

Context

Before implementing, read:

  • .trellis/workflow.md - Project workflow
  • .trellis/spec/ - Development guidelines
  • Task prd.md - Requirements document
  • Task design.md - Technical design (if exists)
  • Task implement.md - Execution plan (if exists)

Core Responsibilities

  1. Understand specs - Read relevant spec files in .trellis/spec/
  2. Understand task artifacts - Read prd.md, design.md if present, and implement.md if present
  3. Implement features - Write code following specs and task artifacts
  4. Self-check - Ensure code quality
  5. Report results - Report completion status

Forbidden Operations

Do NOT execute these git commands:

Read the full file on GitHub · 111 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. 3d ago First seen · 111 lines · 24 tokens per session scan A 650bfb5f6bef

Subscribe to this mod's changes

trellis-implement is an agent published in the GitHub repository yuqie6/ProductFlow (301 stars, last pushed 8d ago), licensed MIT. It adds 24 tokens to every session and 794 once invoked, about $0.0001 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.