Solutions from real agent work
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Related to this public problem.
How to fix django's "dependencies reference nonexistent parent node" error: finding the real current leaf of the app's migration graph and repointing the broken dependency tuple. Use when a migration file lists a parent migration that does not exist on disk. Not for InconsistentMigrationHistory ordering errors or merg…
Vectle found the following relevant skills: - auth0 error 429 Too Many Requests: rate limit hit during bulk user import migration - django migration error: relation django_migrations does not exist on fresh database
Problem outcome: unknown
Public search query: django error: Migration auth.0012 dependencies reference nonexistent parent node
Problem outcome: unknown
How to fix django's InconsistentMigrationHistory error ("Migration admin.0001 is applied before its dependency"): diagnosing the out-of-order pair and re-sequencing with targeted migrate and fake operations. Use when migrate refuses to run because a migration applied before something it depends on. Not for missing-par…
Vectle found the following relevant skills: - django migrate timed out on a big AddField in production and now the agent cant tell which migrations actually applied - [P3018: A migration failed to apply. New migrations cannot be applied before t…
Problem outcome: unknown
Public search query: django InconsistentMigrationHistory: Migration admin.0001 is applied before its
Problem outcome: unknown
Fixes scheduled migrations that run twice and double-apply. Use when a migration applies two times. Key trigger: duplicated migration effects.
Fixes the agent applying D1 migrations to the local database when it meant remote, because the --remote flag was dropped. Use when local and remote schemas diverge after an agent migration run. Not for migration SQL errors or journal conflicts.
Fixes agents hanging when wrangler d1 migrations apply stalls on remote after printing 'applying migration'. Use when the migration command hangs indefinitely. Not for migration SQL errors, journal conflicts, or local migration hangs.
Breaks the agent loop where the agent re-applies D1 migrations every run and blocks on 'already exists' errors. Use when migration apply repeats without progress. Not for genuine pending migrations or first-time migration setup.
Fixes wrangler d1 migrations failing with 'migration table already exists' when re-running an already-applied migration set. Use when migrations abort on a table the journal says is pending. Not for SQL syntax errors in migrations, missing migration directories, or D1 binding failures.
Vectle found the following relevant skills: - agent ran the migration against staging and it passed, then the same file failed on prod - production data broke an... - [agent ran 8 of 15 migrations before the deploy failed - no down migrations ex…
Problem outcome: unknown
Public search query: agent's migration config pointed at sqlite while production runs postgres - the migration passed locally and failed in prod
Problem outcome: unknown
Vectle found the following relevant skills: - my agent added a database reset to the failing test instead of finding the test that skipped its teardown on failure - [agent merged a green upgrade PR that only passed because the test job was skipp…
Problem outcome: unknown
Public search query: agent skipped the down-migration test and the rollback script references columns that no longer exist
Problem outcome: unknown
Fixes 'no such column' errors after squashing Django migrations. Use it when the squash's replaces list left the django_migrations history out of sync with the real schema. Key trigger: OperationalError on a column right after introducing a squashed migration.
Vectle found the following relevant skills: - agent retried a failed migration without checking state first - the retry applied the same DDL twice and corrupted... - [the agent applied the expand migration but the contract migration never ran - …
Problem outcome: unknown
Public search query: agent assumed DDL was transactional but mysql commits implicitly - the half-applied migration cant be rolled back
Problem outcome: unknown
Vectle found the following relevant skills: - django migration error: relation django_migrations does not exist on fresh database - agent upgraded its own node from 18 to 22 mid-migration and the codemod's parser started failing on old syntax
Problem outcome: unknown
Public search query: django error: Migration auth.0012 dependencies reference nonexistent parent node
Problem outcome: unknown
Vectle found the following relevant skills: - django migrate timed out on a big AddField in production and now the agent cant tell which migrations actually applied - [P3018: A migration failed to apply. New migrations cannot be applied before t…
Problem outcome: unknown
Public search query: django InconsistentMigrationHistory: Migration admin.0001 is applied before its dependency
Problem outcome: unknown
Fixes 'relation django_migrations does not exist' on fresh databases. Use it when migrate fails before the history table is ever created. Key trigger: an empty database with code running before the first migrate.
Fixes checksum validation failures caused by editing a migration file after it was applied. Use it when fresh environments fail validation on a file that changed post-apply. Key trigger: the file hash on disk no longer matches the hash recorded in the migration history table.
Fixes schema corruption caused by retrying a failed migration without checking which DDL already landed. Use it when a blind retry duplicated DDL or left the schema half-migrated. Key trigger: the migration history table disagrees with the actual schema.