v8-runner

name: v8-runner description: "Use when Codex needs to manage v8-runner on local 1C projects through the CLI: configure v8project.yaml, initialize infobases or EDT workspaces, build sources from Designer or EDT, run syntax checks and tests, dump infobase changes, convert source formats, load or export artifacts, launch 1C clients, or choose safe 1C automation command sequences." provides_capabilities: - build_project - full_rebuild_project - init_infobase - config_init - syntax_check_designer_modules - syntax_check_designer_config - syntax_check_edt - run_yaxunit - run_vanessa - dump_config - load_artifact - make_artifacts - convert_sources - launch_designer - launch_thin_client - launch_mcp_client - run_session_manager - extensions_update

v8-runner

Use this skill to manage v8-runner as an automation layer for local 1C development projects.

Keep this file as the entry point for decisions. Load only the reference file that matches the task:

• references/command-selection.md — for choosing the correct command sequence.
• references/bootstrap.md — for generating v8project.yaml from an existing repository: what to determine yourself and what to ask the user (decision tree for format, builder, connection).
• references/config-and-backends.md — about v8project.yaml, source sets, formats, builders, and backend limitations.
• references/project-workflows.md — typical build, syntax, dump, launch, and source synchronization scenarios for Designer- and EDT-based projects.
• references/file-and-artifact-workflows.md — about dump, convert, load, make/artifacts, and staged publication.
• references/testing.md — about YaXUnit, Vanessa Automation, syntax checks, and artifacts.
• references/troubleshooting.md — about configuration failures, stale state, and environment diagnostics.
• references/auth-guard.md — hard stop on license patterns, the rule of two candidates, auth/path error classification, storing credentials in v8project.local.yaml.

Command Form

Canonical binary path is tools/external/v8-runner/v8-runner (in the project this works through the tools/ symlink to the framework). The framework installer pulls the latest release from alkoleft/v8-runner-rust on every launch; manual reinstall is python tools/install.py --install-external-tools. If the binary is missing at that path and also not in PATH, ask the user for the path or use the project wrapper script.

v8project.yaml is the default project config name. A neighboring v8project.local.yaml is loaded automatically for machine-local paths, credentials, tools, tests, and MCP settings. Do not pass --config v8project.yaml unless the user explicitly asks for a non-standard command form or the active config path differs from the default; never pass v8project.local.yaml through --config.

Generated v8project.yaml files contain a yaml-language-server modeline that points to the versioned JSON Schema for the current v8-runner release. For v8project.local.yaml, use the corresponding raw URL docs/schemas/v8project.local.schema.json from the GitHub tag in editor settings when schema-assisted editing matters.

Use JSON output only when another tool, script, or the final answer needs structured results:

v8-runner --json-message build

For direct human diagnostics, use text output.

Useful global flags:

• --config <CONFIG> — when the active config is not ./v8project.yaml.
• --json-message — for machine-readable CLI wrappers.
• --workdir <WORKDIR> — overrides workPath; takes precedence over v8project.local.yaml.
• --clean-before-execution — clear logs before execution.
• --log-level <error|warn|info|debug|trace> — for diagnostics.
• --no-color — plain text output.

First Pass

1. Check whether v8project.yaml exists at the root of the 1C project.
2. If it does not, run the narrowest possible v8-runner config init ... command that fits the project form.
3. Inspect the generated config before running any mutating commands.
4. Run v8-runner init only when you need to create a file-based infobase or an EDT workspace.
5. Run the narrowest validation command that answers the user's goal.

Useful initialization commands:

v8-runner config init
v8-runner config init --connection "File=build/ib"
v8-runner config init --format edt
v8-runner config init --builder IBCMD
v8-runner init

Routing Typical Scenarios

• If sources changed, the infobase may be stale: run v8-runner build.
• If only one source set changed: use commands that accept --source-set <NAME> instead of a full rebuild or materializing everything.
• Branch switch, rebase, large object moves, stale source-based tool extension state, or suspicious incremental state: run v8-runner build --full-rebuild.
• Syntax check: inspect format and builder, then choose syntax designer-modules, syntax designer-config, or syntax edt.
• Behavior validation: run the appropriate v8-runner test ... command; tests build first.
• Debugging Vanessa Automation or writing scenarios: use v8-runner launch mcp va ... to start the client MCP server with VA loaded.
• Need extension property synchronization: use v8-runner extensions or extensions --name <SOURCE_SET>.
• Infobase changes must become Git-visible files: check git status, then run the appropriate v8-runner dump ... command.
• Need to convert sources between Designer and EDT: use v8-runner convert; this is CLI-only and does not use the infobase.
• Existing .cf or .cfe artifacts need to be applied to the infobase: use v8-runner load ....
• Need to export release artifacts or publish external artifacts: use v8-runner make ... or the artifacts alias.
• Need a 1C UI session: use v8-runner launch designer, launch thin, launch thick, or launch ordinary.
• Need to start onec-client-mcp-devkit inside 1C without authoring VA: use v8-runner launch mcp ....
• Pair a running 1C client with a running v8-client-session-manager over WebSocket: see the separate "WS pairing parameters" section below. WS flags (--mcp-transport, --manager-url, --client-uid, --corr-id, --mcp-log-level, --mcp-ws-timeout-ms) are available on launch ... and test ... commands in the same way. Subtle clap detail: on test, the flags are placed before the yaxunit/va subcommand (for example, v8-runner test --mcp-transport=ws yaxunit module <NAME>), not after.

WS Pairing Parameters with session-manager

WS pairing with v8-client-session-manager is a mode in which the 1C client MCP server connects to the manager over WebSocket instead of local HTTP MCP. It is controlled by the same set of CLI flags or by tools.client_mcp.* in v8project.yaml.

Applicable Entry Points

The same set of flags works for:

• v8-runner launch designer | thin | thick | ordinary — flags are placed after launch.
• v8-runner launch mcp / launch mcp va — flags are placed after launch mcp [va].
• v8-runner test yaxunit all / test yaxunit module <NAME> — flags are placed at the test level, BEFORE the yaxunit subcommand.
• v8-runner test va — flags are placed at the test level, BEFORE the va subcommand.

Example (test): v8-runner test --mcp-transport=ws --mcp-log-level=debug yaxunit module mcp_МспПровайдер_Тесты. If you place the WS flags after yaxunit or module <NAME>, clap returns error: unexpected argument because these subcommands do not declare their own McpClientWsArgs.

CLI Flags

• --mcp-transport={ws|legacy|auto} — auto (default) performs a TCP probe of manager_url for about 200 ms; ws is strict WS and fails if unavailable; legacy is the old HTTP mode without probe.
• --manager-url <URL> — override tools.client_mcp.manager_url (default ws://127.0.0.1:4000/sessions).
• --client-uid <UUID> — override the auto-generated v4 UUID.
• --corr-id <STR> — override vr-<first 8 characters of client_uid>.
• --mcp-log-level={off|error|warn|info|debug|trace} — log level inside the client.
• --mcp-ws-timeout-ms <N> — WS handshake timeout (default 1000 ms; relevant for auto fallback).

Alternative: all of this can be configured in tools.client_mcp.* in v8project.yaml / v8project.local.yaml — priority order: CLI → yaml → internal defaults.

tools:
  client_mcp:
    transport: auto         # ws | legacy | auto
    manager_url: ws://127.0.0.1:4000/sessions
    log_level: info
    ws_timeout_ms: 1000

kind is fixed by the entry point and cannot be overridden from the CLI in any mode.

Internal kind Mapping

What v8-runner Injects into /C in the WS Branch

/C"mcpMode=ws;manager_url=<URL>;client_uid=<UUID>;kind=<KIND>;corr_id=<CORR>;mcp_log_level=<LVL>;mcp_ws_timeout_ms=<MS>"

For launch, this is the entire /C; for test commands, the WS fragment is appended with ; to the existing RunUnitTests=… / Vanessa player (if transport=ws is selected through the yaml config).

The full payload, the JSON output form (--json-message), probe rules, and behavior when the manager is unavailable are in references/project-workflows.md (section "WS Mode with session-manager"). Bringing up the manager itself is not part of v8-runner — see the v8-session-manager skill.

Resolved: WS Sessions in test yaxunit (DRIVE 2026-05-11)

Symptom: yaxunit_runner is NOT registered in the manager's session_list, although v8-runner correctly injects the WS payload into /C (RunUnitTests=...;mcpMode=ws;...;kind=yaxunit_runner;...).

The root cause is a race condition in BSL client_mcp (ManagedApplicationModule.bsl): the idle handler Мсп_ОтложенныйСтарт_Тик was set with a 1 second interval, while YAXUNIT with closeAfterTests: true closed the application about 1 second after startup (the tests run in about 200 ms), so the idle handler did not have time to tick.

Fix: reduce the idle-handler interval from 1 to 0.1:

// exts/client_mcp/Ext/ManagedApplicationModule.bsl
ПодключитьОбработчикОжидания("Мсп_ОтложенныйСтарт_Тик", 0.1, Истина);

After the fix, yaxunit-Enterprise registers as kind=yaxunit_runner in the manager's session_list (confirmed in v8-runner stdout: [MCP INFO ...] WS session registered: uid=... kind=yaxunit_runner ... tools=24).

Protective Rules

• Before any v8-runner operation that accesses an infobase, apply auth-guard: check credentials and classify possible errors (license / auth / path) — see references/auth-guard.md.
• Do not delete or recreate an infobase, workspace, temp directory, or generated state unless the user explicitly asked for it or the command itself is documented as a recovery path.
• Do not invent raw 1cv8, ibcmd, or 1cedtcli flags; prefer the v8-runner command surface.
• Before dump, check git status if the result may overwrite or mix with already applied source edits.
• Keep failed test artifacts in workPath/temp/<runner-id>/runs/<run-id>/ for diagnostics; do not clean them immediately.
• Report missing local 1C utilities as environment/install problems, not project source errors.
• Keep final responses concrete: executed command, result, path to the relevant artifact, and any follow-up command.

Output Discipline

When reporting results, separate:

• project source failures;
• v8-runner command/config failures;
• failures locating the local 1C platform, EDT, IBCMD, or tools;
• test failures and their artifact paths.