Sigio connects evidence from your tools and structures specs that both your team and your AI agents can act on — so you ship the right thing, faster.
Free during early access · No credit card required
Connects to your stack
The feedback loop
Most tools treat the brief as the finish line. Sigio treats it as one turn of a loop that compounds with every cycle — so your team builds the right thing, faster, every time.
Sigio pulls live data from PostHog, Intercom, HubSpot, and Linear — so every decision starts from evidence, not memory.
AI researches, synthesizes, and drafts. You review and approve each section. The result is a spec that both your team and coding agents can act on.
Structured briefs are exposed to Cursor, Claude Code, and Copilot via MCP. Agents get the full context — problem, evidence, acceptance criteria — not just a prompt.
User reactions, support tickets, and usage data from shipped features flow back into the context graph. The next brief starts from a richer foundation. The loop gets tighter every cycle.
"The problem with product specs isn't writing them — it's that they're disconnected from what happens after. Sigio closes the loop between intent, execution, and outcome."
What powers the loop
Sigio isn't another PM tool. It's the connective tissue between product intent and shipped outcomes.
Queries PostHog, Intercom, HubSpot, and Linear simultaneously. Findings are cross-referenced, time-stamped, and linked to source.
Every brief, decision, and outcome enriches a shared knowledge graph. Past patterns inform future specs automatically.
Structured specs are exposed directly to Cursor, Claude Code, and Copilot. Agents get rich context, not vague prompts.
After features ship, Sigio monitors the signals that motivated the brief. Did the needle move? That answer feeds the next cycle.
AI researches and drafts. You approve every section. Explicit controls at each step mean the brief reflects your judgment, backed by evidence.
Sigio is both an MCP client (consuming your tools) and an MCP server (exposing briefs to agents). One protocol, both directions.
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