agentmods.dev

SessionStart

A session-start hook that runs a shell script when a new coding session begins. A hook is an automatic action triggered by an event.

In plain words
What is it for?
Use it to launch the project's AI-SDLC governance setup when a session starts.
Why use it?
It ensures the project's startup checks or setup actions run consistently at the beginning of each session.

Hook for Claude Code

92 +1 9d ago A scan tokens not measured original Apache-2.0
View the source file ai-sdlc-framework/ai-sdlc
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/ai-sdlc-framework/ai-sdlc/session-start
Clone the repo
git clone --depth 1 https://github.com/ai-sdlc-framework/ai-sdlc

Made for: Claude Code.

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 A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SessionStart scanned grade A with 0 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/settings.json · 13 lines

What it actually says

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "bash \"$CLAUDE_PROJECT_DIR/ai-sdlc-plugin/hooks/session-start.sh\"",
          "statusMessage": "Loading AI-SDLC governance..."
        }
      ]
    }
  ]
}
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. 2d ago First seen · 13 lines scan A c8c2e862279f

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository ai-sdlc-framework/ai-sdlc (92 stars, last pushed 9d ago), licensed Apache-2.0. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

DevOps and cloudai-agentsai-coding-agentsai-governancedeveloper-tools
Related

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PreToolUse

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vaaraio/vaara · not measured

SessionStart

Runs when a session starts, executing run.sh via sh. From vaaraio/vaara.

vaaraio/vaara · not measured

SubagentStop

Runs when a subagent finishes, executing collector-hook.js via node. From core0-io/nio.

core0-io/nio · not measured

SessionEnd

Runs when a session ends for clear, prompt_input_exit, logout, resume, bypass_permissions_disabled and other tool calls, running an inline shell check. From QORIS-AI/knox.

QORIS-AI/knox · not measured

PreToolUse

Runs before the agent uses a tool for Write, Edit, MultiEdit, NotebookEdit and Bash tool calls, executing warden-guard.sh and warden-bash-guard.sh (2 commands). From HawkannG/Claude-Warden.

HawkannG/Claude-Warden · not measured