observability hooks

openlit/openlit

Hook

Runs when a session starts, running openlit coding hook --vendor=cc --event=SessionStart. From openlit/openlit.

openlit/openlit

Hook

Runs when you submit a prompt, before the agent sees it, running openlit coding hook --vendor=cc --event=UserPromptSubmit. From openlit/openlit.

openlit/openlit

Hook

Runs after a tool call finishes, running openlit coding hook --vendor=cc --event=PostToolUse. From openlit/openlit.

traceroot-ai/traceroot

Hook Claude Code

Runs after a tool call finishes for Edit and Write tool calls, executing lint.sh. From traceroot-ai/traceroot.

SigNoz/agent-skills

Hook

Runs before the agent uses a tool for WebFetch tool calls, executing allow-signoz-webfetch.js via node. From SigNoz/agent-skills.

SigNoz/agent-skills

Hook

Runs when a session starts, executing self-hosted-nudge.js via node. From SigNoz/agent-skills.

Hedde/trigger_tree

Hook

Runs when a session starts, executing tt-codex-hook.py with --client. From Hedde/trigger_tree.

Hedde/trigger_tree

Hook

Runs after a tool call finishes for Bash, Read, Glob, Grep, Skill, apply_patch, Edit, Write and mcp__.* tool calls, executing tt-codex-hook.py with --client. From Hedde/trigger_tree.

Hedde/trigger_tree

Hook

Runs when the agent finishes a response, executing tt-codex-hook.py with --client. From Hedde/trigger_tree.

datadog-labs/claude-code-plugin

Hook

Runs after a tool call finishes for ^mcp__plugin_datadog_mcp__(get_widget and visualize_tabular_data)$ tool calls, running bash. From datadog-labs/claude-code-plugin.

datadog-labs/claude-code-plugin

Hook

Runs when a session ends, running bash. From datadog-labs/claude-code-plugin.

yideng-xl/gemini-cli-hud

Hook

Runs when a session starts, executing hook.js via node. From yideng-xl/gemini-cli-hud.

yideng-xl/gemini-cli-hud

Hook

Runs on the AfterTool event, executing hook.js via node. From yideng-xl/gemini-cli-hud.

yideng-xl/gemini-cli-hud

Hook

Runs when a session ends, executing hook.js via node. From yideng-xl/gemini-cli-hud.

prime-radiant-inc/claude-plugin-cxdb-integration

Hook

Runs when a session starts, executing session-start.sh via bash. From prime-radiant-inc/claude-plugin-cxdb-integration.

prime-radiant-inc/claude-plugin-cxdb-integration

Hook

Runs when you submit a prompt, before the agent sees it, executing user-prompt.sh via bash. From prime-radiant-inc/claude-plugin-cxdb-integration.

prime-radiant-inc/claude-plugin-cxdb-integration

Hook

Runs after a tool call finishes, executing post-tool-use.sh via bash. From prime-radiant-inc/claude-plugin-cxdb-integration.

nikshepsvn/scrim

Hook

Runs after a tool call finishes, executing run.sh. From nikshepsvn/scrim.

nikshepsvn/scrim

Hook

Runs when you submit a prompt, before the agent sees it, executing run.sh. From nikshepsvn/scrim.

nikshepsvn/scrim

Hook

Runs when the agent finishes a response, executing run.sh. From nikshepsvn/scrim.