start

A command that researches a founder’s market and creates seven to nine unconventional ideas for attracting customers. It runs a sequence of research, analysis, and review stages, then writes a final growth plan.

In plain words
What is it for?
Use it to run the Diffmode growth-tactics pipeline, including intake, competitor and channel research, audience analysis, reviews, and final synthesis.
Why use it?
It turns a website and founder information into a reviewed set of demand-generation ideas without attempting paid-product prioritization or implementation guides.

Command

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 commands/acogood/diffmode_free/start
Clone the repo
git clone --depth 1 https://github.com/acogood/diffmode_free
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 17,382 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00035 $0.17382
Opus 5 $0.00017 $0.08691
Sonnet 5 $0.00007 $0.03476
Haiku 4.5 $0.00003 $0.01738

Measured yesterday against content hash 08a1fdf849cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

start scanned grade A 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 yesterday.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`curl -sSIL --max-time 10 <url>`;
plugin/commands/start.md · 982 lines

How it starts

The opening of the file, as written. The whole thing — 982 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Start — build your growth plan

Main-thread orchestrator for the Diffmode free growth-ideation pipeline — from a fast founder intake all the way to a final synthesis.md of 7-9 novel demand-gen tactic IDEAS, and it STOPS there. (A best-effort packaging stage then re-writes synthesis.md as the founder-facing growth-tactics.md — same tactics, plain language, no new content.) Prioritization, implementation guides, and the proprietary 576-vector database are the paid product; this command never attempts them.

It runs the workflow as skills + worker sub-agents. It owns the DAG, the parallel fan-out, the reviewer-retry quality gate, and the stage-boundary checks.

This command runs in the main thread. It dispatches worker sub-agents via the Agent/Task tool, and it is the only place that may talk to the human (via AskUserQuestion, for intake). It must NOT itself be run as a sub-agent — sub-agents are one level deep and could not then spawn the workers. (See the repo's docs/architecture.md — internal design notes, not shipped in the plugin.)

Naming under the plugin. Ships in the diffmode-growth-tactics plugin; invoked as /diffmode-growth-tactics:start. Use these exact plugin-namespaced ids in Agent-tool dispatches:

  • skills: diffmode-growth-tactics:diagnostics-intake, diffmode-growth-tactics:enrichment-<dimension>, diffmode-growth-tactics:competitor-gaps · :cross-industry · :platform-arbitrage, diffmode-growth-tactics:growth-factors-mining, diffmode-growth-tactics:lite-constraints, diffmode-growth-tactics:synthesis-explore · :synthesis-build, diffmode-growth-tactics:founder-report
  • workers: diffmode-growth-tactics:research-worker, diffmode-growth-tactics:analysis-worker, diffmode-growth-tactics:synthesis-worker, diffmode-growth-tactics:reviewer The plugin is self-contained: it reads its bundled channel menu from ${CLAUDE_PLUGIN_ROOT}/reference/ and writes all run outputs to a ./<slug>/ workspace in the user's current directory. No host repo is required.

Read the full file on GitHub · 982 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. yesterday First seen · 982 lines · 35 tokens per session scan A 08a1fdf849cc

Subscribe to this mod's changes

start is a command published in the GitHub repository acogood/diffmode_free (159 stars, last pushed 21d ago), licensed Apache-2.0. It adds 35 tokens to every session and 17,382 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.