· Read-only migration reconnaissance

Trace the roots before you rename the user.

Map every path, exported record, config value, and external handoff that still depends on an old identifier—then give each finding an owner and a rollback step.

  • Sources stay read-only
  • No telemetry
  • Human confirmation required
A field-guide illustration of a fern whose roots branch into file paths, database tables, and integration nodes
Specimen A. One visible identity, many dependent roots.

Field procedure

A migration plan you can hand to every owner

Move from a vague grep result to an auditable, rehearsable handoff.

  1. 01

    Declare the specimen

    Name each old → new identifier and the folders or read-only exports you intend to inspect.

  2. 02

    Observe every root

    The CLI records each literal occurrence with source, line, column, type, and secret-redacted context.

  3. 03

    Assign a keeper

    Unowned findings stay visibly unresolved. SaaS exports always carry a human-confirmation warning.

  4. 04

    Rehearse the return

    Every mapping/source pair enters the rollback ledger as not tested until a person verifies it.

Local field test

See the evidence shape before you install

This simplified browser scan never uploads or stores what you paste. The CLI adds directories, export files, secret redaction, and full ledgers.

Evidence sheet

4 hits

The working tool

From plan file to review bundle

The single Rust binary runs offline on macOS, Linux, or Windows and opens sources only for reading.

migration field log
$ cargo install identity-migration-map
$ imm init --output migration.toml
$ imm scan --plan migration.toml --out migration-map

Mapped 12 occurrence(s) across 7 file(s).
Reports: migration-map

Evidence

Machine-readable manifest plus a row for every exact file, line, and column.

Ownership

Markdown checklist grouped by the people who must confirm meaning and authority.

Rollback

A CSV ledger whose verification status starts honestly at not-tested.

Read the source and full CLI reference

Optional field kit

Reusable planning templates, once

The free CLI includes scanning, redaction, every export format, and all safety checks. The $19 one-time Field Kit adds editable stakeholder brief, cutover runbook, and rollback rehearsal templates for teams that want a polished project packet.

  • Migration brief with owner sign-off table
  • Timed cutover and communications runbook
  • Rollback rehearsal and evidence checklist

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Before the first change

Make the hidden dependencies discussable.

Map a sample locally