Do not bill the model for the install log
Strip the terminal noise before a coding agent reads a tool result, and show what you kept.
- Category
- Developer tools
- Who it is for
- A developer who can see the trace of a coding agent and is tired of paying to read logs.
- Possible model
- Open source
- Difficulty
- Easy
- Inspired by
- tokenjuice · tokenjuice
- Original launch
- Watch the launch · Oct 6, 2026
Difficulty is an editorial estimate of technical and operational complexity, not a score.
Startup idea analysis by Startup Ideas. Last reviewed Oct 7, 2026. How we read a launch.
The startup idea
Brucky's post says a coding agent spends more tokens reading install logs than writing code. tokenjuice is open source and strips that noise before it hits the context. He says he ran it on a plain npm install and git status, and 85% of what the agent would have read was noise. The install he publishes is npm install -g tokenjuice, then tokenjuice install claude-code. He says it also works with Codex, Cursor, Gemini CLI, and about 100 other agents. The 85% is one run he is reporting. The 'about 100' is his claim. A reply links the GitHub repo. He also points at another agent's $0.0036 bill as the reason this matters. That bill is not tokenjuice's price, and it is not this page's measurement.
The opportunity is the filter in front of a tool result, for the agent the developer already uses. A cheaper model does not help if the prompt is an install log. The product is a before and after the developer can see, on commands they actually run, with a switch to put the raw output back.
Do not sell a new agent. If the filter hides a vulnerability line or a failing test, it is worse than the noise.
The problem
Agents spend the context window on install logs, cache lines, and help text that are not the answer.
Who would pay for this?
- Primary
- A developer who can see the trace of a coding agent and is tired of paying to read logs.
- Secondary
- A team that wants one policy for what tool output is allowed into the context.
- Early adopter
- Your own npm install and your own git status.
How could it make money?
Possible models. Nothing here is a claim about what tokenjuice charges.
- The post ships it as open source. Do not invent a price.
- A team plan is only real if someone wants a shared rule for what gets dropped.
- Savings on the model bill are the pitch. Measure them on your runs. Do not quote someone else's $0.0036.
What would the MVP look like?
- One agent.
- Two commands you already run.
- A count of tokens before and after.
- The raw output one click away.
- Nothing dropped that contains an error or a secret, until you have a rule for those.
How to validate the idea
- Run it on the next ten tool calls in a real task. Read what it cut.
- If it cuts the line you needed, the product is wrong even if the percentage looks good.
- If the agent still finishes the task, keep a week of before-and-after token counts. That page is the sales page.
How to differentiate
- Sit in front of the agent the user has. Do not ask them to switch.
- Show the cut. A silent filter will not be trusted.
- Start with two commands, not a hundred agents.
- Errors stay. Decorations go.
Why this could be interesting now
Tool traces are now long enough to dominate the bill, and developers can see the trace. The tokenjuice post is one public filter for that, measured on a single install and a single git status.
Original product launch
This launch is inspiration and evidence that someone shipped, not a partnership. The idea above is our reading of the broader opportunity. tokenjuice did not write it.
- Product
- tokenjuice
- Company
- tokenjuice
- Film
- tokenjuice, strip the noise before the model reads it
- Posted
- Oct 6, 2026 · 0:18
Product that inspired this idea
An open-source filter that strips terminal noise before it reaches a coding agent. The post says one npm install and one git status were 85% noise.
Posted by @danikkk_wqs. Watch the original launch. No separate product site is listed unless the post itself is the source.
- agents
- context
Related startup ideas
- A drive that files the document and cites the page
Upload a pile of files, have them land in a folder a person would recognize, and answer a question with the page it came from.
- A visible team of agents in a world you can walk into
Use a shared world, not a log file, when several agents need a person to come over and decide.
- An Android remote for coding agents
A phone client for checking projects and steering agents when the laptop is closed.
- An inbox so the agents stay quiet
Collapse every coding-agent thread into one list, and only interrupt when one of them is stuck.
- Coding agents in the menu bar
Show which coding session is working, which is stuck, and let a person reply without opening the app.
- Human-looking cursors for computer-use agents
A small open library of mouse motion so an agent cursor does not look like a teleport.
Looking for more ideas?
The full list is startup ideas for 2026, each one tied to a launch you can watch.
Browse startup ideas for 2026