verifier-mp

Probe plugin for re-verifying findings recorded in research.md

24 skills · hooks

Companion plugin used to trigger validator errors (probes 02 and 20)

4 skills

Does a plugin-level SubagentStart hook fire on Cowork, and does its JSON additionalContext reach the subagent? Compares plain stdout, matcher-less JSON and matcher-scoped JSON in one launch.

1 skill · 1 agent · hooks

userConfig re-probe for the post-2.1.207 spec: exec-form ${user_config.*} substitution, CLAUDE_PLUGIN_OPTION_<KEY> env in hooks, skill/agent content substitution, and the manifest `default` field. Declares every documented option field (string/number/boolean, required, sensitive, default, multiple, min/max) so the input UI can be compared between Claude Desktop Code and Cowork.

1 skill · 1 agent · hooks

PreToolUse block-method matrix (decision/permissionDecision/exit2) CLI vs Cowork

1 skill · hooks

Skill-to-skill PreToolUse:Skill block test for CLI vs Cowork

2 skills

Tests whether a value persisted to $CLAUDE_PLUGIN_DATA from a plugin-level SessionStart hook survives across Cowork chat sessions. Write+read-back runs in the host hook (persist.sh) because the VM body has DATA unset; surfaces accumulated per-session markers so cross-session persistence is read from SessionStart context.

1 skill · hooks

CLAUDE_ENV_FILE hook->Bash-tool env propagation test

1 skill · hooks

Minimal env-propagation probe (plugin-level / frontmatter / body) for CLI vs Cowork comparison

1 skill · hooks

Recheck hook environment without command substitution.

1 skill · hooks

Tests hook command exec form (args present) on Cowork: whether ${CLAUDE_PLUGIN_ROOT} resolves to a real path via launcher text pre-substitution vs env-var export, where shell form (§2.1/§2.2) failed both.

1 skill · hooks

top-level vs bash -c shell expansion test for CLI vs Cowork

1 skill · hooks

hook(host) vs Bash tool(VM) filesystem isolation test

1 skill · hooks

Disambiguator probe. Adds double-quote and $HOME observation points to settle whether Cowork hook command runtime is (a) shell-bypassed launcher or (b) bash -c with $-escape + path-prefix pre-sub.

1 skill · hooks

Tests ${CLAUDE_PLUGIN_ROOT}/hooks/script.sh launch in plugin-level SessionStart hook. Designed to be installed via the Cowork GUI marketplace flow (not zip upload) and compared against zip-upload baseline.

1 skill · hooks

CLAUDE_PLUGIN_ROOT pre-substitution test (top-level vs bash -c) for CLI vs Cowork

1 skill · hooks

Tests whether Cowork runs plugin-level PreToolUse hook commands through cmd.exe (like SessionStart) or a POSIX shell, and whether the inline tool_input=$(cat)|grep&&echo-block pattern actually blocks the bash tool.

1 skill · hooks

Minimal SessionStart hook retest for Windows Cowork.

1 skill · hooks

Isolate which SessionStart hook command form fails to surface on Cowork

1 skill · hooks

Tests whether a plugin-level UserPromptExpansion hook fires on Cowork (slash-invoked), with SessionStart/UserPromptSubmit controls. Windows: expected validator reject (§2.3); macOS: may install, letting firing be observed for the first time.

1 skill · hooks

userConfig sensitive x required combination test

1 skill · hooks

Isolated violator: a shell-form hook command referencing ${user_config.*}, which post-2.1.207 should fail with an error instead of running. Separate plugin so the failure cannot take down cowork-userconfig2-probe; control entries before/after detect collateral damage.

1 skill · hooks

Tests skill-body ${CLAUDE_PLUGIN_ROOT} substitution value on Mac Cowork, whether the VM Bash tool can use it, and whether the Read tool can read a bundled file at that host path (article section 3).

1 skill

Proves whether a skill frontmatter PreToolUse:Bash hook fires on Cowork by emitting only a block decision (no echo). Mac re-verification of frontmatter hook behavior.

1 skill

Frontmatter hook pre-sub vs shell-exp test (CLI-only)

1 skill

Isolated UserPromptExpansion violator for probe 20

hooks

Tests whether a type=mcp_tool hook (invokes a bundled MCP server tool instead of a shell command) is accepted by the Cowork validator and fires on Mac Cowork. Bundles a dependency-free stdio MCP server (marker-server/record_marker) that returns additionalContext JSON so MCP_TOOL_HOOK_FIRED surfaces in context; mcp_tool hooks ride UserPromptSubmit/PostToolUse with command-type controls for isolation.

Isolated kebab-case violator for probe 20