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An Eraser alternative when your coding agent builds the system
Eraser turns prompts, code and cloud accounts into diagrams and keeps them current. SkeletIQ starts earlier, before the code exists. You describe the system, get a design with its weak spots named, release it, and your coding agent builds from it. This page sets out what each one does and when you would pick it.
Pick Eraser if you want clear diagrams of systems you already run, kept current from your code. Pick SkeletIQ if the system isn't built yet and you want a critiqued design that your coding agent builds from and reports back against.
Checked November 12, 2026. Every claim about another product here comes from its own site, docs or repository, checked on the date shown. Report a mistake
What Eraser does well
A diagram from a prompt, Terraform or a design doc
Eraser's AI takes a prompt, a Terraform file or an uploaded design doc and returns a laid-out diagram. You can keep editing the result by hand or with further prompts. For explaining a system to a new teammate, or getting a rough sketch into shape before a review, you skip the part where you push boxes around. Eraser home page (opens in a new tab) Eraser AI diagrams docs (opens in a new tab)
Diagrams that keep up with your code
Eraserbot watches the files you choose. When a pull request touches them, it comments with the updated diagram, and when the change merges, the diagram is updated. Eraser can also sync maps from cloud accounts and internal catalogs. If your problem is documentation that falls behind the system, this is aimed squarely at it. Eraserbot docs (opens in a new tab) Eraser home page (opens in a new tab)
A check against what the diagram should match
Eraser's Verify reads a freeform diagram against the models its elements link to, your AI preset, reference material and any standard you name. It lists every issue, grouped by source, and never edits the diagram. Your team can mark a finding as wrong and run the check again, which keeps reviews of the picture honest. Eraser diagram verification docs (opens in a new tab)
Where the two differ
A map of what exists, or a design for what you will build
Eraser's AI builds maps of your systems from your cloud, code, CMDB and spreadsheets, so it describes what is already there. SkeletIQ works from a description of a system that doesn't exist yet. You get components, data stores and connections, a cost estimate, the requirements each part answers and the questions still open. Your next coding session starts from decisions instead of making them. Eraser home page (opens in a new tab)
Checked against your standards, or judged by fixed rules
Verify checks a diagram against your models, references and standards, so the rules are the ones you bring. A SkeletIQ design is critiqued by rules that give the same findings every time they run. Each finding carries a severity, an impact and a remediation, and the design is scored for security, performance, resilience and data. Your agent then builds against a design whose weak spots are written down. Eraser diagram verification docs (opens in a new tab)
What your coding agent receives
Eraser's MCP server lets coding agents create, search, update and export diagrams and documents. SkeletIQ hands the agent the design itself once you release it: a brief written into AGENTS.md, a build order keyed to component IDs, and check_drift, where the agent reports what it built. The next session opens on the same design, not a fresh guess. Eraser MCP docs (opens in a new tab) See the brief Claude Code receives
## Design Critique
- **Overall:** 98 / 100
- **Security:** 99
- **Performance:** 99
- **Resilience:** 100
- **Data:** 100
> No critical finding blocks handoff. Findings below critical are recommended fixes and do not block handoff.Which one to choose
Choose Eraser when
- You need diagrams of systems you already run, built from your cloud and code.
- You want a diagram that updates when a pull request merges.
- You want diagrams checked against your own models and standards.
Choose SkeletIQ when
- The system isn't built yet and you want the design questioned first.
- A coding agent will build it and needs a brief and a build order.
- You want the agent to report what it built that the design doesn't have.
Settle and release the design here, then keep Eraser as the map of what you end up running.
What SkeletIQ doesn't do
It doesn't see your code or your cloud
SkeletIQ's server never sees your repository and doesn't connect to a cloud account, so it can't map a system you already run. What it knows about your code is what your coding agent reports through check_drift. If you need a picture of production as it stands today, use a tool that connects to it.
A good score isn't a working system
The critique checks the design's structure against rules. A high score means no rule found a problem; it doesn't mean the system will meet its targets in production. Load tests, your own review and the code your agent writes still decide that, and the brief says plainly which requirements nothing has measured.
Eraser pricing
Eraser lists these plans on its pricing page, priced per member.
| Plan | Price |
|---|---|
| Free | Price$0 per member per month |
| Business | Price$45 per member per month, billed annually$60 billed monthly |
| Business Plus | Price$42 per member per month, billed annuallyMinimum of 10 seats |
| Enterprise | PriceCustom pricing |
as of November 12, 2026 Eraser pricing page (opens in a new tab)
SkeletIQ's plans, and what each includes, are on our pricing page. See SkeletIQ pricing