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Linked Repositories let Kody read sibling repositories as read-only context while reviewing a pull request. Use it to catch the bugs a single-repo review can’t see: the backend renames an API field and the frontend still reads the old one, a producer adds an enum value no consumer handles, or writer and reader derive the same key differently. Available on Teams and Enterprise plans. Configured per repository — there is no global default, because relationships are directional: linking frontend → backend-api means reviews of frontend may consult backend-api, not the other way around. Link both directions explicitly if both teams want the check.

What you get

A concrete example. Your frontend PR adds this error handling:
With the backend linked, Kody checks the other side of that contract and comments on the PR:
Bug · medium — The frontend checks error.response?.data?.error for INTEGRATION_NOT_APPROVED, but the backend’s sendError returns the code in a message field. The not-approved branch never matches, so users always see the generic error toast. Read data.message instead.
The review summary also shows what was consulted: Additional context used: org/backend-api@main.

How it works

When a pull request in a repository with linked repositories touches boundary surface (changed string literals, payload fields, status values, exported symbols), Kody’s review agent can search and read the linked repositories — the same way it greps your own repo — to verify that both sides of a contract still agree. Findings are only raised with confirmed evidence from the counterpart file, and the comment always lands on a line of your PR; linked-repo code is quoted inside it as supporting evidence, never commented on directly. Reviews that used cross-repo context say so: the review summary includes an Additional context used line listing each repository and the ref it was read at.
  • Only repositories already connected to the same Kodus organization can be linked (Kody reuses your existing Git integration — no extra tokens).
  • Up to 3 linked repositories per repository.
  • Access is read-only. Kody never pushes to, comments on, or modifies a linked repository.
  • If a linked repository can’t be fetched (permissions, timeout), the review continues normally without it.

Adding a linked repository

Go to Code Review Settings → your repository → Linked Repositories, pick a repository from the list (only connected repos appear), and save. Each link has two optional fields, described below.

Instructions

A free-text hint that tells the review agent what this link is for and where to look. Kody works without it, but a good instruction makes the cross-repo pass faster and more accurate — it’s the difference between the agent exploring the linked repo from scratch and going straight to the relevant code. Good instructions name the relationship and the load-bearing paths:
Weak instructions restate the obvious (“backend repo”) and add nothing.

Ref pin (branch selection)

Controls which branch (“ref”) of the linked repository Kody reads. Most teams leave this empty: Kody then reads the branch with the same name as your PR’s branch when it exists (so coordinated multi-repo changes see each other before merging), and falls back to the default branch otherwise. The full resolution order, first match wins:
  1. PR description override — mention the linked repo’s branch or PR in the description of the PR under review (e.g. org/backend-api#123 or org/backend-api@feature-x). One-off, highest priority. Only applies to repos already linked.
  2. Config ref pin (this field), if set.
  3. Open PR on a matching branch — an open pull request in the linked repo whose head branch matches your PR’s head branch.
  4. Same branch name in the linked repo.
  5. The linked repo’s default branch (then main/master as fallbacks).
Steps 3–4 are what keep multi-repo feature work aligned: the review sees the companion change before it merges, instead of a default branch that doesn’t contain it yet. Set a ref pin (e.g. main, develop, release/2.x) when you want deterministic reviews against a stable branch — for example, when branch names are reused across repos for unrelated work and the same-branch match would pick up the wrong thing. The PR description override still wins over the pin for one-off cases. The review summary always shows which ref was actually used. For a walkthrough with examples, see How to use linked repositories.

When to use it

Linked repositories pay off when repositories share a contract that isn’t enforced by tooling:
  • Frontend ↔ backend pairs that re-declare payload shapes on each side.
  • Service ↔ service integrations passing status values, event names, or IDs.
  • Consumers of a shared library that re-implement or mirror its types.
Linked repositories do not cover contracts that live outside your code — a third-party API’s validation rules, for example, are not discoverable in any linked repository.