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wmadden-electric · 2026-09-12T08:32:58Z

Adds a third output format, --format markdown, to @prisma/cli-engine. It renders the same blocks a command already describes for the terminal as plain Markdown, for agents that read CLI output as text. No command changes and no command can tell the format apart.

Changes

Format selection (presentation.ts, shared-flags.ts, pre-parse-argv.ts): Format is human | json | markdown; --format markdown and --format=markdown select it. No shorthand flag. Default selection is unchanged: a terminal gets human, a pipe gets json; markdown is only ever explicit.
Everything on stdout (command-context.ts, settlement.ts, reporting.ts, needs.ts, engine.ts): under markdown the blocks, next actions, diagnostics, structured errors, config-section warnings, help, --version, and live events all print on stdout and the engine writes nothing to stderr. The raw data lines a command publishes for pipes are not printed, because the Markdown table already carries them. Colour is off even with --color, and the command's Ui reports an unbounded width.
Markdown renderer (execution/markdown.ts): one rule per block kind. [status] text summaries, label: value lines, GFM pipe tables with | escaped and headers sentence-cased, - bullets, nested bullets for trees, fenced code for drawings. Structured errors and diagnostics render as [severity] CODE: summary, then why:, where:, next actions as bullets with the command in backticks, and docs:. Live step-started and progress lines are dropped; step-finished renders as [outcome] step; the other event lines are the same text the terminal prints.
Help (help.ts): split into a HelpCard model plus two renderers. The terminal renderer is byte-identical to before, pinned by tests generated from the pre-refactor build. The Markdown renderer prints a heading, the usage in a bash fence, and the commands, arguments, options, and workflow as pipe tables.
Docs and version: docs/product/output-conventions.md, docs/product/cli-style-guide.md, and the engine README name the third format. The engine is bumped to 0.4.0.

Why

json costs an agent tokens on the envelope and repeated keys; human carries padding, rails, glyphs, and colour that a model cannot use. Markdown gives a model every value labelled, one entity per block, tables only for uniform rows, and no decoration. Because every command already describes its output as blocks, one renderer serves every CLI on the engine at once.

Markdown goes to stdout, unlike the terminal format, because an agent asking for it is asking for the document, the same way --format json puts the whole envelope on stdout. Keeping it on stderr would have handed the agent the Markdown table and the same rows again as tab-separated data lines.

Behaviour change outside markdown

A bare group invocation stays bare when the only extra tokens select a format, for every format. prisma project --json now prints group help on stderr and exits 0 instead of failing with CLI.UNKNOWN_COMMAND, matching what a bare prisma project already did. A malformed or missing format value still reaches routing and fails as before.

Engine transition

The engine bump to 0.4.0 makes the tarball conformance check report engine-pin-mismatch, because @prisma/composer-cli and @prisma/orm-toolchain peer the engine exactly and still peer 0.3.0. As with the 0.3.0 transition, two entries in the conformance exception list carry the mismatch through this PR. Merging publishes engine 0.4.0. The follow-on chain is: both families republish peering 0.4.0, then a release PR here pins the new family versions and empties the exception list.

Verification

Whole-repository gate on the branch tip:

pnpm typecheck: 9 of 9 tasks successful.
pnpm lint: 459 files checked, no fixes applied.
pnpm --filter @prisma/cli-engine test: 38 files, 889 tests passed.
pnpm check:conformance: 0 failing, 6 allowed (the carried engine-pin findings), 5 subjects checked.
pnpm --filter @prisma/cli test: 61 files, 964 passed, 2 platform-conditional skips.
pnpm --filter @repo/cli-conformance test: 5 files, 65 tests passed.
pnpm test:scripts: 80 passed.

The e2e suite was not run; no command was added or changed.

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coderabbitai · 2026-09-12T08:33:29Z

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Summary by CodeRabbit

New Features
- Added explicit --format markdown support for CLI output.
- Markdown output supports help, summaries, tables, lists, diagnostics, errors, next actions, version information, and live events.
- Markdown output is plain, uncolored text written entirely to stdout.
- Explicit Markdown selection takes precedence over JSON flags.
Bug Fixes
- Improved help output routing for human and JSON formats.
- Preserved existing terminal and piped output behavior when no format is selected.
Documentation
- Documented Markdown output conventions and supported format behavior.

Walkthrough

The CLI engine adds an explicit markdown format. It parses Markdown format flags, renders help and command output as Markdown, routes Markdown output to stdout, disables color, and uses unbounded UI width. It adds Markdown handling for diagnostics, errors, next actions, settlements, warnings, and live events. Tests cover the new format and preserve terminal help behavior. Documentation, package versions, and conformance exceptions are updated.

Priority: ➖ Normal

Merge Risk: ⚪ Minimal · up to 3e370

The Markdown format changes are ready to merge; remaining e2e and tarball limitations are validation or release-transition conditions, not demonstrated product failures.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 39.19% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 74 functions across 16 files. (3 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 identifies the primary change: adding `--format markdown` as a third output format for the CLI engine.
Description check	✅ Passed	The description is directly related to the changeset and explains format selection, Markdown rendering, routing, compatibility behavior, documentation, versioning, and verification results.

Full details: Docstring Coverage

Explanation

Docstring coverage is 39.19% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 74 functions across 16 files. (3 skipped: 3 unsupported.)

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pkg-pr-new · 2026-09-12T08:34:16Z

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npx https://pkg.pr.new/@prisma/cli@260

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commit: 3e37052

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Inline comments:
In `@packages/cli-engine/src/execution/markdown.ts`:
- Around line 47-49: Select fence delimiters based on the longest backtick run
in the rendered content, using the shared code-span and code-fence helpers
instead of the fixed FENCE/LONG_FENCE choice. Apply this consistently to the
affected rendering paths, including commands and drawings, and add regression
coverage for content containing backticks.
- Line 56: Update the markdown escaping flow around the text replacement to
escape existing backslashes before escaping table pipes, ensuring input such as
“a \| b” cannot leave the pipe acting as a delimiter. Add a regression test
covering that input and its expected escaped output.

In `@packages/cli-engine/src/execution/pre-parse-argv.ts`:
- Line 82: Update the pre-parsing logic in the function handling selector tokens
so it scans for an explicit --format value before considering --json, matching
applySharedFlags precedence regardless of flag order. Preserve existing behavior
when no explicit format is provided, and add regression coverage for both --json
--format and --format --json orderings.

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docs/product/cli-style-guide.md
docs/product/output-conventions.md
packages/cli-engine/README.md
packages/cli-engine/package.json
packages/cli-engine/src/execution/command-context.ts
packages/cli-engine/src/execution/engine.ts
packages/cli-engine/src/execution/help.ts
packages/cli-engine/src/execution/markdown.ts
packages/cli-engine/src/execution/needs.ts
packages/cli-engine/src/execution/pre-parse-argv.ts
packages/cli-engine/src/execution/rendering.ts
packages/cli-engine/src/execution/reporting.ts
packages/cli-engine/src/execution/settlement.ts
packages/cli-engine/src/execution/shared-flags.ts
packages/cli-engine/src/presentation.ts
packages/cli-engine/tests/fixtures/help-cards.ts
packages/cli-engine/tests/help-markdown.test.ts
packages/cli-engine/tests/help-terminal.test.ts
packages/cli-engine/tests/markdown.test.ts
packages/cli/package.json
packages/prisma/package.json

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…from content, and lets --format beat --json Three review findings on #260. A table cell escapes a backslash before the pipe, so `a \| b` survives. Every inline code span uses a delimiter one backtick longer than the longest run in its content, padded when the content starts or ends with a backtick; every fence is one longer than the longest run and at least three — one shared helper pair (`codeSpan`, `fenced`) used for next-action commands, help usage, help tables, help examples, help workflow, and drawings. The pre-parse scan now picks an explicit `--format` value over `--json` whichever comes first, matching `applySharedFlags`, so `--json --format markdown` renders Markdown help rather than JSON. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

Adds a third output format. Under markdown the engine calls the same `human(ui)` thunk once, never calls the `stdout` thunk, renders every block as plain Markdown on stdout, and writes nothing to stderr. Colour is off even with `--color`, `Ui.width` is unbounded, and every `=== "human"` check in `engine.ts` and `settleVersion` now sends markdown down the human path. The renderer lives in `execution/markdown.ts` beside `rendering.ts`; `markdown.test.ts` pins every block kind, next-action bullet, the diagnostic shape, the sections, and the blank-line rule byte-for-byte. Errored runs, `--version`, child status, live events, help, docs, and the engine version bump follow in later dispatches. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

… and config warnings Under `--format markdown` every remaining non-help surface now prints on stdout and stderr stays empty. An errored run prints the error in the diagnostic shape, then `### Diagnostics` for the accompanying findings; `--version` prints the bare version; a child-status settlement prints its next actions as bullets; live events print one line each (`step-started`, `progress`, and `remediation` dropped, `step-finished` as `[outcome] step`, the rest as human); config-section warnings of an OK run print in the diagnostic shape before the blocks. `commentaryLine` in `rendering.ts` is now the one source for the endpoint, status, and artifact lines, so the two renderers cannot drift. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

The warnings section is separated from whatever the run prints next (blocks, an error, or nothing) by exactly one blank line, per the spec's config-section warnings rule. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

`help.ts` is now a `HelpCard` data model (header, usage, description, and every section as rows) plus the terminal renderer, byte-identical to before; `markdown.ts` gains `renderHelpMarkdown`, which draws the same card as headings, paragraphs, pipe tables, and bash fences per the spec's help shape. `--help`, `-h`, `--help-all`, and bare group invocations route to it under `--format markdown`, on stdout with stderr empty. The bareness check now ignores the format-selection flags, so `cli project --format markdown` is the group's help rather than an unknown-command error. Terminal help for a root, a group, and a leaf card was captured before the split and is pinned in `help-terminal.test.ts`; the Markdown output for the same cards is pinned in `help-markdown.test.ts`. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

…bare `withoutFormatFlags` dropped a `--format` token whatever followed it and scanned past `--`, so `cli --format`, `cli project --format=bogus`, and `cli --format project` printed help and exited 0 instead of the usage error they gave before. It now strips `--format=<v>` and `--format <v>` only when `<v>` is a recognised format, and stops at a bare `--`, keeping it and everything after it. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

`docs/product/output-conventions.md` gains a `--format markdown` section, the style guide's flag list names the third format, and the engine README names the three formats and their purposes. `pnpm bump-cli-engine-version minor` moves the engine from 0.3.0 to 0.4.0 and repins `@prisma/cli` and `prisma` to it. The tarball conformance check `engine-pin-mismatch` will fail until `@prisma/composer-cli` and `@prisma/orm-toolchain` republish against 0.4.0; that is the known merge blocker for this PR. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

…from content, and lets --format beat --json Three review findings on #260. A table cell escapes a backslash before the pipe, so `a \| b` survives. Every inline code span uses a delimiter one backtick longer than the longest run in its content, padded when the content starts or ends with a backtick; every fence is one longer than the longest run and at least three — one shared helper pair (`codeSpan`, `fenced`) used for next-action commands, help usage, help tables, help examples, help workflow, and drawings. The pre-parse scan now picks an explicit `--format` value over `--json` whichever comes first, matching `applySharedFlags`, so `--json --format markdown` renders Markdown help rather than JSON. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

… the families republish The engine moves to 0.4.0 for the markdown output format. Both families peer the engine exactly and still declare 0.3.0, so conformance would report the pin mismatch as a failure. Two PinException entries carry the transition, in the shape the 0.3.0 transition used, each with the condition that removes it. Co-Authored-By: Claude Fable 5.1 <[email protected]> Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]>

## Release: 8.0.0-rc.10 → 8.0.0-rc.11 This is the routine release PR per [docs/oss/versioning.md](https://github.com/prisma/prisma/blob/main/docs/oss/versioning.md). It bumps every workspace package to 8.0.0-rc.11 and moves every `@prisma/cli-engine` pin from 0.3.0 to 0.4.0. No other change has merged since rc.10; the engine move is the whole release. The engine change: `@prisma/[email protected]` adds a `--format markdown` output format to every command and widens the engine's `Format` type from `"human" | "json"` to `"human" | "json" | "markdown"` ([prisma/prisma-cli#260](prisma/prisma-cli#260)). No other public API changed. `@prisma/orm-toolchain` peers the engine at an exact version, so the toolchain has to republish to run under a host CLI on 0.4.0. The lockfile change is exactly the engine resolution (0.3.0 → 0.4.0, same peers) plus the routine `workspace:` specifier bumps. Review surface: [docs/releases/v8.0.0-rc.11.md](https://github.com/prisma/prisma/blob/release/8.0.0-rc.11/docs/releases/v8.0.0-rc.11.md) is the release notes file that becomes the GitHub Release body. The matching `CHANGELOG.md` entry and the `8.0.0-rc.10-to-8.0.0-rc.11` upgrade recipes (app and extension) are included; `check:upgrade-coverage` requires the recipes because the bump touches `examples/` and `packages/3-extensions/`. The supabase contract fixtures carry the new version stamp, as in every release. **Merging this PR ships the release**: the push to `main` carries the bumped root `version`, the `Publish to npm` workflow detects the change and publishes 8.0.0-rc.11 under `latest`, creates a pre-release GitHub Release from the notes file, then publishes `8.0.0-rc.11-dev.1` under `dev`. Local verification: `check:release-notes` (PR mode), `check:upgrade-coverage`, and `test:scripts` (507 tests) pass; the CLI tooling package's typecheck and its 1455 tests pass against engine 0.4.0. `fixtures:check` passes against a local Postgres (the emitted contracts are unchanged apart from the version stamp). 🤖 Generated with [Claude Code](https://claude.com/claude-code)  ## Summary by CodeRabbit * **New Features** * CLI commands now support Markdown output through `--format markdown`, alongside human-readable and JSON formats. * **Breaking Changes** * The CLI engine requirement is updated to version 0.4.0. * **Documentation** * Added release notes and upgrade guidance for applications and extensions, including refreshed generated contract metadata. * **Release Updates** * Updated Prisma 8 packages, examples, fixtures, and tooling to version 8.0.0-rc.11.  --------- Signed-off-by: willbot <[email protected]> Signed-off-by: Will Madden <[email protected]> Co-authored-by: Claude Fable 5.1 <[email protected]>

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wmadden-electric and others added 8 commits September 13, 2026 08:14

wmadden-electric force-pushed the claude/prisma-markdown-format-623ba8 branch from fd84abf to 3e37052 Compare September 13, 2026 06:17

wmadden-electric merged commit 219cf06 into main Sep 13, 2026
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wmadden-electric deleted the claude/prisma-markdown-format-623ba8 branch September 13, 2026 06:31

This was referenced Sep 13, 2026

chore(release): bump to 8.0.0-rc.11 prisma/orm#30272

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chore(release): bump to 8.0.0-rc.15 #266

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feat(engine): `--format markdown`, a third output format for agents - #260

feat(engine): `--format markdown`, a third output format for agents#260
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