agentmods.dev

SessionStart

A session-start hook that runs install.sh when a coding-agent session starts, resumes, is cleared, or is compacted.

In plain words
What is it for?
Use it when a project needs install.sh executed during startup and related session transitions.
Why use it?
It repeats the repository’s installation step at key session lifecycle events, helping required setup run automatically.

Hook

Part of the mcp-stata plugin — 20 skills, 4 agents, 1 hook shipped together

81 3mo ago C scan tokens not measured AGPL-3.0
View the source file tmonk/mcp-stata
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add hooks/tmonk/mcp-stata/session-start
Clone the repo
git clone --depth 1 https://github.com/tmonk/mcp-stata

Or install mcp-stata, the plugin that ships this one along with the rest of its 20 skills, 4 agents, 1 hook.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan C 2 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Security

Grade C, and why

SessionStart scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

"command": "claude plugin marketplace update mcp-stata-marketplace 2>/dev/null; claude plugin update mcp-stata@mcp-stata-marketplace 2>/dev/null; echo 'mcp-stata loaded. Use /stata or ask whether the toolkit is available

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"command": "claude plugin marketplace update mcp-stata-marketplace 2>/dev/null; claude plugin update mcp-stata@mcp-stata-marketplace 2>/dev/null; echo 'mcp-stata loaded. Use /stata or ask whether the toolkit is available
plugin/hooks/hooks.json · 14 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 14 lines scan C 5e826b430af3

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository tmonk/mcp-stata (81 stars, last pushed 3mo ago), licensed AGPL-3.0. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

LLMaieconometricseconomicsmcpmcp-server
Related

Other hooks, from other repositories

PreToolUse

Runs before the agent uses a tool for Bash, Write, Edit, MultiEdit and Bash tool calls, executing git-guardrails.py and root-of-trust-guard.py via python3 (2 commands). From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured

PostToolUse

Runs after a tool call finishes for Bash, Agent, Task, Write, Edit and MultiEdit tool calls, executing context-monitor.py and claim-reconcile.py via python3 (2 commands). From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured

SessionStart

Runs when a session starts on compact and resume, executing post-compact-restore.py via python3. From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured

Notification

Runs when the agent sends a notification, executing notify.sh. From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured

PreCompact

Runs before the context is compacted, executing pre-compact.py via python3. From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured

Stop

Runs when the agent finishes a response, executing log-reminder.py via python3. From pedrohcgs/claude-code-my-workflow.

pedrohcgs/claude-code-my-workflow · not measured