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Show HN: Polygraph – Let AI agents see cross repo and maintain session memory

Polygraph, a meta-harness from the Nx team, launches to give AI agents cross-repo visibility and persistent session memory. It indexes all connected repositories into a graph, enabling agents to plan and execute cross-repo tasks without manual guidance, and allows session handoffs between agents. The tool is free during early access.

read2 min views1 publishedJun 25, 2026
Show HN: Polygraph – Let AI agents see cross repo and maintain session memory
Image: source

See everything, forget nothing

See everything, forget nothing

See everything, forget nothing

The meta-harness that gives agents what they're missing: visibility across every repo boundary, and memory that survives every session.

The meta-harness that gives agents what they’re missing: visibility across every repo boundary, and memory that survives every session.

The meta-harness that gives agents what they’re missing: visibility across every repo boundary, and memory that survives every session.

Cross repo unity

Prompt once. Land everywhere. #

Polygraph indexes every repo you have access to (private and OSS) and builds a graph of how they relate via packages and APIs. Your agent uses this to plan cross-repo work without being told where to look; turning your codebase into a synthetic monorepo.

Polygraph isn't an agent. It's the meta-harness that lets them take on more ambitious tasks.

Polygraph isn’t an agent. It’s the meta-harness that lets them take on more ambitious tasks.

Polygraph isn’t an agent. It’s the meta-harness that lets them take on more ambitious tasks.

Share effortlessly

Hand off a session across any agent. Repos, branches, PRs, and logs come with it, so nobody re-explains anything.

Hand off a session across any agent. Repos, branches, PRs, and logs come with it, so nobody re-explains anything.

Session history

Reference any past session. Polygraph brings back its description, PRs, and traces, so you fix bugs without digging through history.

/// Integrations Polygraph plugs into your existing stack. Connect your repos and CI once, and let the agent handle the rest.

Polygraph plugs into your existing stack. Connect your repos and CI once, and let the agent handle the rest.

Polygraph plugs into your existing stack. Connect your repos and CI once, and let the agent handle the rest.

Codex

Claude Code

Github

Open Code

AGENT SESSIONS, UNIFIED

AGENT SESSIONS, UNIFIED

Remember everything

Remember everything

Remember everything

$O

Free during early access

Free during early access

Free during early access

Full product, zero cost. 30 day notice before any pricing changes.

Full product, zero cost. 30 day notice before any pricing changes.

Your agent sees stars.

Polygraph sees the whole constellation.

Your agent sees stars.

Polygraph sees the whole constellation.

Your agent sees stars.

Polygraph sees the whole constellation.

BUILT BY THE NX TEAM

BUILT BY THE NX TEAM

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