Repair Claude Code sessions
that refuse to resume.

A session is a plaintext transcript of everything your agent did. When it won't resume — orphaned tool results, broken references, a line that won't parse — SessionPatch shows you the damage and lets you fix it, then exports a new .patched.jsonl. The original is never touched.

Open the editor Why transcripts disappear Local-first — nothing uploads.

auth-refactor.jsonl · 12.3 MB · 2,561 events

ReadEditDoctor

SESSION

▸ User · Fix the auth…

▸ Claude · Let me look…

▸ Read · login.ts

▸ Bash · npm test failed

▸ Result · 1 test failed

L0001
USER Fix the auth flow — login hangs after submit.

L0002
CLAUDE Let me look at the login handler first.

L0003
TOOL_CALL { "name": "Bash", "command": "npm test" }

L0004
TOOL_RESULT FAIL src/auth/login.test.ts — 1 failed, 11 passed

L0005
CLAUDE Found it — the handler awaits a promise that never resolves…

Inspector

TypeUser Message

Line1

UUIDa0e6…

Parent—

▸ View raw record

READ

Sessions render as a document — not chat bubbles, not raw JSON.

EDIT

Rewrite messages and tool outputs. UUIDs and tool linkage stay intact.

FIX

Doctor reports orphaned results and broken parent chains, click-to-jump.

VALIDATE

Structure is checked before every export — issues surface before the file goes back.

EXPORT

Writes a new .patched.jsonl. One edit = one changed line; original untouched.

LOCAL

Parsing runs in your browser. Sessions never leave the machine.

Pricing in one line

The editor is free and unlimited. Supporter ($2, once) removes the footer credit; Studio ($20, once) adds priority fixes and a 10-seat team license. Full pricing.