feat(engine): commands can ask for a statement such as --delete Legacy, not only a copied confirmation token by wmadden-electric · Pull Request #337 · prisma/prisma-cli

wmadden-electric · 2026-10-07T20:54:13Z

At a glance

The ORM's prisma migration plan finds that a plan would drop the Legacy table. Only the user knows whether Legacy was deleted or renamed, so the command asks. With this PR the engine handles the asking:

const [answer] = await ctx.prompt.statements([
  {
    question: 'Table "Legacy" would be dropped and its rows lost. What do you mean?',
    subject: 'Legacy',
    verbs: ['rename', 'delete'],
    forms: { rename: 'Legacy:<new name>' },
    validate: (verb, text) => resolve(verb, text),
  },
]);
// answer: { verb: 'delete', text: 'Legacy', values: ['Legacy'] }

The same question is answered three ways, depending on how the command runs:

# a script passes the answer as a flag: no prompt
$ prisma migration plan --delete Legacy

# a script passes nothing: the command fails before it changes anything
$ prisma migration plan
✖ [CLI.CONSENT_REQUIRED] "Legacy" needs a statement, and the session is not interactive.
→ Pass --delete Legacy
→ Pass --rename Legacy:<new name>

# a person in a terminal is asked, and types the answer
? Table "Legacy" would be dropped and its rows lost. What do you mean? (rename Legacy:<new name> or delete) › rename Legacy:Archive

The decision

A consent can now be a statement: a verb and its values that say what the user means, such as delete Legacy or rename Legacy:Archive. Until now a consent could only be a fixed token the user copies back (--confirm <token>, or typing the token at the prompt).

A token is right when one thing is at stake and the only answer is "yes". It is not enough for the ORM's migrations. One run can find several operations that would lose data, and for each the right answer depends on what the user meant: a dropped table may be a deletion or a rename. A copied token cannot carry that meaning, and one --confirm cannot answer several questions in a way a reader of the script can check.

The engine knows no verbs. A command declares the verbs it accepts; rename and delete are the ORM's words, declared on the ORM's commands. ADR 0006 records the decision.

How it works

1. A command declares its verbs.

defineCommand({
  statements: {
    delete: { arity: 1, brief: 'Let the command lose the data of a model: --delete Model' },
  },
  // ...
});

arity is how many values one --delete takes; brief is its help text. A verb is one lowercase word and may not share a name with a flag of the command or of the engine. Server commands may not declare verbs. Breaking any of these rules throws when the command is built.

2. The engine takes the verb flags out of argv. Stricli gives a flag one value per occurrence, so it cannot parse a verb that takes more than one value. The engine finds the command from the leading words of argv the way stricli does, removes that command's --<verb> flags and their values, keeps them in order, and passes the rest to stricli unchanged. -- stops the extraction. A value cannot start with - unless written --delete=-1. A wrong number of values, or an empty one, is CLI.INVALID_ARGUMENTS.

3. The command asks. ctx.prompt.statement(question, options) asks one question; ctx.prompt.statements([...]) asks several at once. Each question has a subject, the verbs that may answer it, optional forms that show the expected values in the refusal, and a validate function the command owns. Each question is answered by the first of these that applies:

A flag whose value names the subject. If validate rejects it, the result is CLI.PROMPT_INVALID, because a flag cannot be corrected by asking again.
No one, when the session is not interactive or --yes is set. The engine throws one CLI.CONSENT_REQUIRED that lists every unanswered question with the flags that answer it. --yes never answers a statement.
The person at the terminal, who types <verb> <values> (or only <verb> when the value is the subject). If validate rejects it, the reason is shown and the question is asked again.

When a subject contains :, a flag value answers the subject it equals; otherwise the longest subject it starts with followed by :.

4. Flags nothing asked about fail. A verb flag no question used is CLI.CONSENT_UNUSED, so a misspelled --delete Legcy never passes silently. With { last: true } this check runs as soon as the questions are answered, before the command does anything. Otherwise it runs at the end of a successful run.

5. A command can also use a verb's values as input. The ORM plans with the user's renames, and only then knows which drops remain to ask about. ctx.statements.take('rename') returns that verb's values in order and marks them used. ctx.statements.values() lists the values not yet used, without marking them, for a command that prints a retry line.

6. --confirm on these commands. A command that declares verbs fails an unused --confirm with CLI.CONSENT_UNUSED. Its consents are statements now, and a habitual --confirm <db> would otherwise be silently ignored. Commands without verbs keep today's behaviour. Two shipped commands accept --confirm without using it, so the rule cannot apply to every command yet: #339.

7. Printed flags are safe to paste. A value with characters the shell treats specially is single-quoted. A value starting with - or = is printed as --delete=<value>.

8. Signals. SIGINT or SIGTERM while a question waits cancels it with CLI.PROMPT_CANCELLED (exit 3 for Ctrl-C, 143 for SIGTERM). A second signal exits at once.

What ships

packages/cli-engine: the statements declaration on defineCommand, ctx.prompt.statement and statements, ctx.statements.take and values, flag extraction (statement-flags.ts), the new CLI.CONSENT_UNUSED code, and statement forms of CLI.CONSENT_REQUIRED and CLI.PROMPT_INVALID. 1144 engine tests, with new ones for declarations, flag order, prompts, quoting, signals and edge cases.
Docs: the engine README, the consent section of docs/product/cli-style-guide.md, the error reference, and ADR 0006.
@prisma/cli-engine 0.7.0, a minor release: new API and new error codes, nothing removed.
The conformance check has two temporary exceptions, because @prisma/composer-cli and @prisma/orm-toolchain still declare 0.6.3 as their peer. They go when both release against 0.7.0: Remove the engine 0.7.0 conformance exceptions once composer-cli and orm-toolchain peer 0.7.0 #338.

The first user is prisma/orm#30648, where migration plan and db update declare rename, delete and allow.

Alternatives considered

One --confirm per operation, with the subject as the token (--confirm Legacy --confirm User.name): no engine change, but --confirm Legacy does not say what happens to Legacy, a misspelled token is silently ignored today, and the prompt would still be "type this word to confirm".
Each product parses its own --delete outside the engine's consent: the product would build its own prompt and refusal, and --confirm would still be accepted and do nothing.
Verbs registered once for the whole CLI as shared flags: the first version of this branch. It put --delete on every command, so it was replaced by declaring verbs per command.

Agent: beowulf-40

defineCommandFamily takes statementVerbs. Each verb becomes a reserved, repeatable --<verb> flag on every mounted command, listed in help and the telemetry snapshot. A command declaring a flag with a verb's name, or a verb that is not camelCase or is already a shared flag, fails construction. The run state keeps every verb-flag value in argv order. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

A statement is answered first by a verb flag whose value names the subject (the subject, or <subject>:...), then refused with CLI.CONSENT_REQUIRED outside an interactive terminal or under --yes, then asked. ctx.prompt.statements asks several at once, and its refusal lists every question still unanswered. A run that succeeds with a verb-flag value nothing consumed fails with CLI.CONSENT_UNUSED. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

The product families still peer 0.6.3, so conformance records an exception for each until they release against 0.7.0. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…ly registering verbs defineCommand takes statements: { <verb>: { arity, brief? } }. Only that command accepts --<verb>; help lists it on the command's own card; the telemetry snapshot records its name. A statement clashing with a shared flag or the command's own flag fails construction, and a prompt naming a verb the command did not declare is a construction error. Command families no longer carry statementVerbs. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…rs can fail before side effects The engine takes the routed command's statement flags out of argv before the parser sees it: each --<verb> takes the declared arity in values, in argv order. A wrong count or an empty value is CLI.INVALID_ARGUMENTS. Answers carry the values as well as the text. statements(questions, { last: true }) fails with CLI.CONSENT_UNUSED as soon as the questions are answered, before the command acts. The unused error now says when a subject was asked but already answered by another flag. Construction errors: a verb that is not one lowercase word, an arity that is not a whole number of at least 1, a server command declaring statements, and a question with an empty subject, a subject containing ':', or a verb listed twice. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…ue } rejects leftovers early Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

… that start with '-' A kebab-case word now finds a camelCase command when the engine looks for the command's statement flags, as the parser does. A missing first value followed by a token starting with '-' says to write --<verb>=<value>. A statement-flag argument error names the command and fires the run summary. An interactive answer's text is its values joined by one space, the same as a flag's. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…d the user answers with Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

coderabbitai · 2026-10-07T20:54:52Z

Summary by CodeRabbit

New Features
- Commands can request statement-based consent through command-specific flags or interactive prompts. Answers are validated, and unanswered questions or unused flags produce clear errors.
- CLI help lists available statement flags, expected values, and descriptions.
- Commands can access statement-flag values in their original order or inspect values that remain unused.
- Statement consent is not bypassed by --yes; existing token-based confirmation remains available.
Bug Fixes
- Interrupting a prompt with SIGINT or SIGTERM now cancels it with a clear error.
- Multi-line error explanations are now indented for easier reading.
Documentation
- Updated CLI guidance and error references to explain statement consent, answer requirements, and related errors.

Walkthrough

The CLI engine adds command-declared statement verbs with arity and optional help text. It extracts matching flags before argument parsing and provides single and grouped statement prompt APIs. Answers can come from matching flags or interactive input. The engine validates answers and reports errors for malformed, unanswered, or unused statement values. Documentation, tests, package versions, and conformance exceptions are updated.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 76 functions across 26 files. (5 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the main change: commands can request statement-based consent through flags such as `--delete Legacy` instead of only copied confirmation tokens.
Description check	✅ Passed	The description directly explains the statement consent feature, its APIs, flag handling, errors, prompts, tests, documentation, and release changes.

Full details: Docstring Coverage

Explanation

Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 76 functions across 26 files. (5 skipped: 5 unsupported.)

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pkg-pr-new · 2026-10-07T20:55:43Z

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docs/architecture/adrs/0006-consent-as-a-statement.md
docs/architecture/adrs/README.md
docs/product/cli-style-guide.md
docs/reference/error-reference.md
packages/cli-engine/README.md
packages/cli-engine/package.json
packages/cli-engine/src/commands.ts
packages/cli-engine/src/context.ts
packages/cli-engine/src/execution/clack-renderer.ts
packages/cli-engine/src/execution/command-snapshot.ts
packages/cli-engine/src/execution/command-tree.ts
packages/cli-engine/src/execution/engine.ts
packages/cli-engine/src/execution/help.ts
packages/cli-engine/src/execution/pre-parse-argv.ts
packages/cli-engine/src/execution/prompts.ts
packages/cli-engine/src/execution/statement-flags.ts
packages/cli-engine/src/exports/index.ts
packages/cli-engine/tests/clack-prompts.test.ts
packages/cli-engine/tests/statement-declarations.test.ts
packages/cli-engine/tests/statement-edge-cases.test.ts
packages/cli-engine/tests/statement-flag-order.test.ts
packages/cli-engine/tests/statement-prompts.test.ts
packages/cli/package.json
packages/cli/scripts/conformance.ts
packages/prisma/package.json

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Only a result command asks statements. defineSessionCommand dropped the field silently; it now throws, as defineServerCommand does. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…d's input, and a subject may contain ':' take(verb) returns that verb's unconsumed values in argv order and consumes them, so the leftover check does not report them; other verbs' values stay for the questions. An undeclared verb is a construction error. A question's subject may now contain ':'; matching is unchanged. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

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Review comments at @packages/cli-engine/src/execution/prompts.ts:
- Around line 179-180: Update the batch question-matching flow in `prompts.ts`
to reserve exact subject matches for all questions before assigning prefix
matches, while returning answers in the original question order. Add a
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docs/architecture/adrs/0006-consent-as-a-statement.md
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packages/cli-engine/src/commands.ts
packages/cli-engine/src/context.ts
packages/cli-engine/src/execution/command-context.ts
packages/cli-engine/src/execution/prompts.ts
packages/cli-engine/src/exports/index.ts
packages/cli-engine/tests/statement-declarations.test.ts
packages/cli-engine/tests/statement-edge-cases.test.ts
packages/cli-engine/tests/statement-take.test.ts

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…e longest subject it names Within one batch, values equal to a subject answer first; any other value answers only the question with the longest subject it names, so --delete A:B no longer answers the question about A. The unused-flag wording names the longest asked subject too. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…and not a verb a later question lists Also replaces the stale 'handlers never see' wording and names take in the CLI.CONSENT_UNUSED entry. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

No flag value of a taken verb is left to answer the question, so the verb serves the refusal's flag form and the typed answer. Tests pin both. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…es without consuming them ADR 0006 now states the subject-matching rule and why its separator is ':', records the rules added since acceptance (take, values, longest subject first, ':' in subjects, last), and says what the flag and prompt paths actually share. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…hows each verb's form Every printed flag form single-quotes a value with anything but plain characters (POSIX escape for an embedded quote) and joins a value starting with '-' with '='. The prompt shows each verb with its form; a rejected answer under clack is asked again in an empty field with the reason above the question. A multi-line why is indented on every line. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

zsh reads a bare leading '=' as a command lookup, so such a value is now single-quoted. Also documents that only the first value of a verb with arity above 1 can be written --<verb>=<value>, that a rejected typed answer is asked again only on a terminal (ADR 0006), and how a multi-line why is indented (error conventions). Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…y flags, and a signal cancels a waiting prompt An unconsumed --confirm token is now CLI.CONSENT_UNUSED in every command, like a statement leftover. A statement refusal lists any given statement flag that names none of its subjects and any --confirm token, and CONSENT_UNUSED lists the subjects the run asked about. Next actions read "Run the command again with --<verb> <value>". A SIGINT or SIGTERM delivered while a prompt waits for input cancels the prompt (CLI.PROMPT_CANCELLED, exit 3) instead of leaving a clack prompt holding the terminal. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @packages/cli-engine/src/execution/engine.ts:
- Around line 403-406: Update deliverSignal so an already-aborted
state.promptCancel.signal counts as the first delivered signal; a subsequent
signal must invoke runtime.exit with the existing signal-specific exit code
instead of only setting deliveredSignal and aborting ctx.signal.

Review comments at @packages/cli-engine/src/execution/prompts.ts:
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docs/architecture/adrs/0006-consent-as-a-statement.md
docs/product/cli-style-guide.md
docs/product/error-conventions.md
docs/reference/error-reference.md
packages/cli-engine/README.md
packages/cli-engine/src/commands.ts
packages/cli-engine/src/execution/clack-renderer.ts
packages/cli-engine/src/execution/engine.ts
packages/cli-engine/src/execution/prompts.ts
packages/cli-engine/src/execution/rendering.ts
packages/cli-engine/tests/clack-prompts.test.ts
packages/cli-engine/tests/consent-leftovers.test.ts
packages/cli-engine/tests/execution.test.ts
packages/cli-engine/tests/interaction-affordances.test.ts
packages/cli-engine/tests/prompt-signals.test.ts
packages/cli-engine/tests/statement-edge-cases.test.ts
packages/cli-engine/tests/statement-flag-forms.test.ts
packages/cli-engine/tests/statement-prefix-subjects.test.ts
packages/cli-engine/tests/statement-prompts.test.ts
packages/cli-engine/tests/statement-take.test.ts

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…als at a prompt settle as signals An unconsumed --confirm is CLI.CONSENT_UNUSED only on a command that declares statements; elsewhere it stays silent until bucket key delete and project env delete consume it (#339). A SIGTERM that cancels a waiting prompt now settles 143; a SIGINT stays 3, the user declining. Once a signal has cancelled a prompt the next signal force-exits, and later prompts in the run are cancelled at once. The line reader removes its abort listener when the read settles. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

…tive retry Covers a consumed token on a statement command, an unused token failing at a last batch before the command acts, and a mistyped token followed by the right one typed on a command without statements. The last option's doc and the README say to ask any token consent before the last batch. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

stale

… drop is answered with --delete or --rename (prisma#30648) ## At a glance A user deletes the `Legacy` model from the contract source, renames `Profile` to `User`, and plans a migration. They say what they did about `Profile`, but not about `Legacy`: ```text $ prisma migration plan --name tidy-users --rename Profile:User ✖ [CLI.CONSENT_REQUIRED] 1 subject needs a statement, and the session is not interactive. why: Drop table "Legacy" would lose the data of model "Legacy". → Pass --rename 'Legacy:<new name>' → Pass --delete Legacy ``` Nothing is written. Adding `--delete Legacy` writes the plan, and its `Statements applied` block lists `delete model "Legacy" (1 operation)`. When a person runs the same command in a terminal, it asks instead: ```text ? Drop table "Legacy" would lose the data of model "Legacy". (rename Legacy:<new name> or delete) › delete ``` Before this PR, `migration plan` wrote that drop with no question at all, and `db update` asked a single yes/no for the whole plan (`--confirm <database>`). ## The decision `migration plan` and `db update` now refuse any plan that loses data until the user has answered for each operation that loses it: `--delete Legacy` (yes, the data goes) or `--rename Legacy:Archive` (it was a rename; keep the data). There is no longer one consent for the whole plan, and `--confirm` no longer consents to data loss. This builds on prisma#30638 (merged), which added `--rename`. That PR stops the planner dropping a renamed table when the user says it was renamed. This PR closes the other side: when the user says nothing, nothing is lost. ## How it works **1. Which operations count as losing data.** An operation is `destructive` only when it can lose rows or values: dropping a table, a column or a collection, and a type change the database cannot convert without loss. Operations that change structure without losing data are `widening`, and are no longer asked about: `SET NOT NULL`, safe type widenings such as `int4` to `int8` (on `db update` too, read from the live column's type), a SQLite table rebuild that only changes nullability, and MongoDB index and validator changes. **2. What each operation would lose.** The planner result now lists each data-losing operation with the model or field it belongs to, in contract names. It maps table and column names back through the origin contract (the one the database is at now) and through any `--rename` given. Where no contract declares the thing, for example a table an extension's migration drops, it uses the storage name. The framework never sees a table or column; the SQL family and the MongoDB target do the mapping. **3. Asking.** The CLI turns each listed operation into one question and asks them all before anything is written or applied. The answers come from three places, in order: - the command line: `--delete Legacy` or `--rename Legacy:Archive`; - otherwise, when no person is at a terminal (a script, CI, an agent), nothing: the command fails with one error listing every unanswered question and the flag that answers it, as in the example above; - otherwise the person, who types `delete` or `rename Legacy:Archive`. A `rename` typed at the prompt is added to the given renames and the plan is run again. A `--delete` that answers no question fails before anything happens, so a mistyped name never passes silently. A dry run lists the questions, marks which ones the given flags answer, and asks nothing. **4. Who can read the rows (`db update` only).** Dropping a row-level-security policy, or disabling row-level security, loses no data, but it can let more users read or write a table's rows. `db update` asks about each such operation the same way, answered with `--allow User`. `migration plan` does not ask, because the migration is reviewed before it is applied. **5. When `db update` has no origin contract.** `db update` finds the origin contract through the snapshot stored for the database marker's hash. Without one it cannot map tables back to models, so the questions name tables, only `--delete` is offered, and each question gives the steps that store the snapshot so `--rename` becomes possible. **6. The CLI engine change.** The asking, the refusal and the prompt are one mechanism in the shared CLI engine, added in prisma/prisma-cli#337 and released as `@prisma/cli-engine` 0.7.0, which this PR adopts. Each command declares the statements it accepts (`migration plan`: `rename` and `delete`; `db update`: also `allow`). The engine parses those flags for that command only, answers questions from them, and builds the refusal and the prompt. So the flag the refusal tells you to pass is always one the prompt would accept, and vice versa. **7. The control API.** `executeMigrationPlanCommand` and `executeDbUpdate` take a required `answerQuestions` callback. `acceptDataLoss: true` and `acceptAccessWidening: true` answer every question of that kind; `delete` and `allow` entries in `statements` answer one each; an entry that answers nothing fails with `MIGRATION.STATEMENT_ANSWERS_NO_QUESTION`. The whole-plan consent is gone: `MIGRATION.DESTRUCTIVE_CHANGES`, `CONSENT_PLAN_MISMATCH` and the plan-hash round trip. ## What ships - Postgres, SQLite and MongoDB planners: the reclassification and the list of data-losing and access-widening operations. - `migration plan` and `db update`: the questions, `--delete`, `--allow`, the dry-run listing, and `delete` and `allow` lines under `Statements applied`. - Journeys on all three databases (`test/integration/test/cli-journeys/delete-statements-migration*`) and the rewritten consent journeys. - Docs: CLI README, the Statements section of the Migration System doc, the error reference, the CLI Style Guide's consent section, and the `prisma-8` skill. - Upgrade instructions for applications and for extension authors, checked by running them. ## Verification - Architecture and engineering reviews of the whole change, with probes run against PGlite, SQLite and mongodb-memory-server, including the interactive prompt in a pseudo-terminal and table names with shell-special characters. No probe lost a row without a statement, and every printed flag is safe to paste into a shell. - A manual QA run: [report](projects/migration-statements/manual-qa-reports/2026-10-08-qa-slice-2.md). Two pre-existing problems it found are filed: TML-3516 (SQLite autoincrement fails the first `db update` schema check) and TML-3517 (the advice when `SET NOT NULL` fails on existing NULLs). ## Not in this PR - `--delete <namespace>` for a whole namespace: comes with namespace statements. - A refusal that groups its flags per subject instead of one line per flag: an engine follow-up. - A MongoDB validator that newly requires a field leaves existing documents that lack it unwritable, with no warning: comes with MongoDB statements. - `--rename` on MongoDB: still refused, with the steps to keep the documents by hand. - A model that keeps its name but changes `@@map`: no statement; the refusal gives the manual steps. ## Alternatives considered - **Per-operation `--confirm Legacy`, using the engine's existing consent:** needs no engine change, but `--confirm Legacy` does not say what happens to `Legacy`, a misspelled name was silently ignored, and the prompt would still be "type this word to confirm". - **`--delete` parsed by the ORM, outside the engine:** reads the same on the command line, but the ORM would need its own prompt, `--confirm` would still be accepted and do nothing, and `--allow` would need a second mechanism. - **Keep one consent for the whole plan:** one yes cannot say which drops were meant, and a script that passes `--confirm` today would keep losing data it never named. Refs: TML-3476 Agent: beowulf-40  ## Summary by CodeRabbit * **New Features** * Migration planning and database updates identify specific data-loss and access-widening questions. Answer them with `--delete`, `--rename`, or `--allow`, or respond interactively. * Dry runs show which questions need answers and which statements already answer them. * **Behavior Changes** * `--confirm` and `--yes` no longer answer migration consent questions. Unanswered or unused statements are reported. * Migration plans classify changes by impact: value-preserving changes are generally treated as widening, while changes that may lose data are treated as destructive.  --------- Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

wmadden-electric added 10 commits October 7, 2026 22:16

docs: statement prompts, their verb flags, and CLI.CONSENT_UNUSED

1cccdcc

Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

chore(engine): bump @prisma/cli-engine to 0.7.0

6d80e3b

The product families still peer 0.6.3, so conformance records an exception for each until they release against 0.7.0. Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

docs: statements are declared per command, with arity, and { last: tr…

1eaddbc

…ue } rejects leftovers early Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

refactor(engine): take statement flags out of argv in their own method

25d03a9

Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

docs(adr): 0006, a consent can be a statement the command declares an…

c4d3238

…d the user answers with Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>

wmadden-electric mentioned this pull request Oct 7, 2026

Remove the engine 0.7.0 conformance exceptions once composer-cli and orm-toolchain peer 0.7.0 #338

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wmadden-electric mentioned this pull request Oct 8, 2026

An unconsumed --confirm should fail every command, once bucket key delete and project env delete consume it #339

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wmadden-electric added 2 commits October 8, 2026 05:06

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TML-3476: migration plan and db update refuse to lose data until each drop is answered with --delete or --rename prisma/orm#30648

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wmadden-electric changed the title ~~feat(engine): a consent can be a statement the command declares and the user answers with~~ feat(engine): commands can ask for a statement such as --delete Legacy, not only a copied confirmation token Oct 8, 2026

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wmadden-electric deleted the engine-statement-prompts branch October 8, 2026 05:36

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chore(deps): align Composer with CLI engine 0.7.0 prisma/composer#345

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chore(release): v0.29.0 prisma/composer#346

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feat(engine): commands can ask for a statement such as --delete Legacy, not only a copied confirmation token - #337

feat(engine): commands can ask for a statement such as --delete Legacy, not only a copied confirmation token#337
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