The SIGNLD extension for Claude
The SIGNLD extension for Claude puts the business context SIGNLD already holds, entities, metrics, rules, definitions and decisions, inside a Claude session. Instead of typing background into a chat by hand, a user works in Claude with the company's own Knowledge Graph already available, and every answer stays traceable to a source record.
In this article
- What this actually does
- What it does not do
- How it works, step by step
- What changes for the person asking the question
- Permissions and data access
- FAQ
What this actually does
SIGNLD is a decision intelligence platform that unifies a company's business systems into a private Knowledge Graph: the entities (customers, vendors, products, teams), the metrics that matter to a business, the definitions those metrics rely on, the rules that govern them, and the decisions already made about them. Normally, a person reaches that context inside SIGNLD's own interface, or by asking SIGNLD a question directly and getting back a ranked, traceable answer.
The SIGNLD extension for Claude is built and maintained by SIGNLD using Anthropic's publicly available extension interfaces. SIGNLD is not affiliated with, sponsored by, or endorsed by Anthropic. What it does is bring that same Knowledge Graph layer into a Claude session, so the context is present while a person is working, rather than something they have to leave the session to go look up.
Concretely, that means when a user is in a Claude session with the extension connected, Claude can draw on the entities, metrics, and definitions already mapped in that company's Knowledge Graph. If a metric like "active accounts" has a specific definition inside the company's systems, that definition is available rather than assumed. If a decision has already been made about how a number gets calculated, that decision is available too. The extension is the connective layer. SIGNLD does the mapping, holds the graph, and keeps it current. Claude is where the person is already working.
This matters because most of the friction in getting useful answers out of a general-purpose assistant is not the assistant's reasoning, it's the missing business context. A person can describe their company in a prompt, but that description is incomplete, goes stale, and has to be repeated every session. The extension replaces that manual re-explaining with a live connection to context SIGNLD already maintains.
There's a distinction worth being precise about: SIGNLD is the system of record for the Knowledge Graph. It decides what counts as an entity, resolves which records across systems refer to the same underlying thing, and holds the definitions a company has agreed on for its own metrics. The extension doesn't duplicate that work inside Claude, and it doesn't maintain a second, separate copy of the graph. It reads from the same graph SIGNLD already maintains, so a definition changed in SIGNLD is the definition available the next time someone opens a Claude session with the extension connected. There's one graph, not two versions drifting apart from each other.
What it does not do
The extension does not turn Claude into SIGNLD, and it does not give Claude write access to any connected system. It is a read layer. It surfaces context that already exists in the Knowledge Graph; it does not create new source data, and it does not change records in the systems SIGNLD is connected to.
It also does not describe or depend on any particular Claude feature, limit, plan, or model. Those details belong to Anthropic and change on their own schedule. For anything specific to Claude itself, the current documentation lives at docs.anthropic.com, and that's the right place to check rather than this post.
The extension does not replace the need for a well-built Knowledge Graph in the first place. If a company hasn't connected its systems to SIGNLD, there's no graph for the extension to draw on inside Claude. The extension is the bridge, not the source.
Finally, it does not make answers inside Claude unquestionable. Every piece of context it surfaces is still traceable back to a source record, and a person can and should check that trail rather than treat an answer as final because it came from a tool.
It's also worth being clear about why this is scoped as an extension rather than a rebuild of Claude itself. SIGNLD's job is the Knowledge Graph: connecting systems, resolving entities, holding definitions, and keeping all of it traceable. Claude's job, whatever that turns out to mean in a given session, belongs to Anthropic and is documented on Anthropic's own terms. The extension exists at the boundary between those two things, carrying context across without either side absorbing the other. That separation is also why this post doesn't describe what a Claude session can or can't do beyond the extension: those specifics live at docs.anthropic.com and change independently of anything SIGNLD ships.
How it works, step by step
The mechanism has a few distinct steps.
First, a company connects its systems to SIGNLD in the usual way, and SIGNLD builds and maintains the Knowledge Graph from those systems: the entities, metrics, definitions, rules, and decisions.
Second, a user installs the SIGNLD extension for Claude and connects it to their SIGNLD account, following the permission flow Claude's extension interface provides.
Third, inside a Claude session, the extension makes the relevant parts of that company's Knowledge Graph available to Claude as context. This happens without the user needing to copy and paste definitions, metric names, or background information into the conversation by hand.
Fourth, as the user works in the session, Claude can reference that context directly, and where an answer draws on a specific entity, metric, or decision, that reference stays traceable back to the underlying record in SIGNLD, and from there back to the source system it came from.
Fifth, nothing here overrides the read-only posture SIGNLD already holds against connected systems. The extension surfaces context; it does not write anything back.
None of these steps require the user to leave Claude and go dig through SIGNLD's own interface to look something up first, which is the point. The context arrives where the work is happening rather than sitting somewhere the user has to remember to check.
What changes for the person asking the question
Without the extension, a person working in Claude on a business question has to supply the business context themselves: what a metric means, which team owns a number, what decision was already made about how something gets counted. That's slow, it's easy to get wrong, and it has to be redone in every new session because a chat doesn't remember a company's Knowledge Graph.
With the extension connected, that context is already present. A person asking about churn, pipeline, or headcount doesn't need to first explain how their company defines those terms, because the definition SIGNLD already holds is available in the session. The practical shift is less time spent re-establishing background and more time spent on the actual question, with the added benefit that the context being used is the same context the rest of the company already relies on through SIGNLD, not a version the user is reconstructing from memory.
It also changes what "trustworthy" looks like inside a Claude session. An answer that references a specific entity or metric from the Knowledge Graph can be traced back to where that entity or metric lives, which is a meaningfully different thing than an answer that sounds plausible but has no path back to a record.
There's also a team-level effect worth naming, even though the extension itself is used one session at a time. When several people on a team each connect the extension, they're all drawing on the same underlying Knowledge Graph rather than each reconstructing their own version of the company's context inside separate conversations. That reduces the chance that two people get different answers to the same business question simply because they described the business differently in their own prompts.
For a closer look at what "business context" means in practice and why a general assistant struggles without it, see what business context for Claude actually means.
Permissions and data access
The SIGNLD extension for Claude is built and maintained by SIGNLD using Anthropic's publicly available extension interfaces. SIGNLD is not affiliated with, sponsored by, or endorsed by Anthropic.
Everything the extension does inside a Claude session stays read-only against SIGNLD's connected source systems, and every piece of context it surfaces stays traceable back to the specific record it came from. The extension does not gain new permissions beyond what SIGNLD already has for that account, and connecting it does not expand SIGNLD's access to any system. A user only sees Knowledge Graph context they already have access to inside SIGNLD; the extension doesn't widen that.
For SIGNLD's broader security posture, including tenant isolation and how connected systems are accessed, see /security. For how the Knowledge Graph itself is structured and maintained, see /concepts#knowledge-graph.
If you want a walkthrough of the actual install and connection flow, setting up the SIGNLD extension for Claude covers that step by step. To see the kinds of questions people actually ask once it's connected, see what you can ask with SIGNLD connected to Claude.
Key takeaways
- The extension does not turn Claude into SIGNLD, and it does not give Claude write access to any connected system.
- Without the extension, a person working in Claude on a business question has to supply the business context themselves: what a metric means, which team owns a number, what decision was already made about how something gets counted.
- The SIGNLD extension for Claude is built and maintained by SIGNLD using Anthropic's publicly available extension interfaces.
- A prompt describes what one person remembers or chooses to type, and it has to be repeated each session.
- The extension itself is part of using SIGNLD with Claude; SIGNLD's own plans are described at /pricing, and anything specific to Claude's own plans and pricing is Anthropic's to document at docs.anthropic.com.
FAQ
Is the SIGNLD extension for Claude made by Anthropic?
No. The SIGNLD extension for Claude is built and maintained by SIGNLD using Anthropic's publicly available extension interfaces. SIGNLD is not affiliated with, sponsored by, or endorsed by Anthropic. Claude and Anthropic are trademarks of Anthropic, used descriptively here to describe compatibility.
Does the extension change what Claude itself can do?
No. It doesn't add or change Claude's own capabilities, limits, or pricing. Those are set by Anthropic and documented at docs.anthropic.com. What the extension adds is access to a company's own Knowledge Graph context inside the session.
Does the extension write anything back to my systems?
No. It is read-only. It surfaces context that SIGNLD's Knowledge Graph already holds; it does not create, edit, or delete records in any connected system.
Do I need SIGNLD set up already to use the extension?
Yes. The extension surfaces the Knowledge Graph that SIGNLD builds from a company's connected systems. Without systems connected to SIGNLD, there's no graph for the extension to bring into a Claude session.
How is this different from just describing my business to Claude in a prompt?
A prompt describes what one person remembers or chooses to type, and it has to be repeated each session. The extension brings the actual Knowledge Graph SIGNLD maintains, which is kept current from connected systems and shared across the company, and it stays traceable back to source records rather than resting on memory.
Does using the extension cost anything beyond SIGNLD and Claude themselves?
The extension itself is part of using SIGNLD with Claude; SIGNLD's own plans are described at /pricing, and anything specific to Claude's own plans and pricing is Anthropic's to document at docs.anthropic.com.
Try SIGNLD free or see how it works.
Claude and Anthropic are trademarks of Anthropic. Used descriptively only.
More in this series
- The SIGNLD extension for Claude: finance teams
- The SIGNLD extension for Claude: operations teams
- The SIGNLD extension for Claude: CPA and professional services
- The Knowledge Graph layer for AI assistants
- Claude with SIGNLD vs Claude alone: the same question, two answers
- Grounding an AI session in your own data without copy and paste
- The SIGNLD extension for Claude: FAQ
- Permissions and data access in the SIGNLD extension for Claude
- Setting up the SIGNLD extension for Claude
- Traceable answers inside a Claude session
- Use your business Knowledge Graph inside a Claude session
- What business context for Claude actually means
- What you can ask with SIGNLD connected to Claude
- Why a general assistant cannot answer your business questions alone