agentmods.dev

SessionStart

A startup and resume hook that runs a Python session-beacon script when an agent session begins or continues.

In plain words
What is it for?
Use it to trigger session_beacon.py on startup and resume events, with a two-second timeout.
Why use it?
It provides a fixed session-start action without requiring someone to run the script manually.

Hook

5 2d ago A scan tokens not measured original MIT
View the source file Zenetusken/consolidate-memory
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/zenetusken/consolidate-memory/session-start
Clone the repo
git clone --depth 1 https://github.com/Zenetusken/consolidate-memory
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.

plugins/consolidate-memory/hooks/hooks.json · 24 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "startup",
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"${CLAUDE_PLUGIN_ROOT}/scripts/session_beacon.py\"",
          "timeout": 2
        }
      ]
    },
    {
      "matcher": "resume",
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"${CLAUDE_PLUGIN_ROOT}/scripts/session_beacon.py\"",
          "timeout": 2
        }
      ]
    }
  ]
}
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 · 24 lines scan A ac8df8f619a4

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository Zenetusken/consolidate-memory (5 stars, last pushed 2d ago), licensed MIT. 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 2026-08-31.

ai-agentsclaude-codeclaude-code-plugincontext-management
Related

Other hooks, from other repositories

Stop

Runs when the agent finishes a response, executing session-end.sh and stop.sh via bash (2 commands). From joseairosa/recall.

joseairosa/recall · not measured

SessionEnd

Runs when a session ends, executing tracker.js. From egorfedorov/claude-context-optimizer.

egorfedorov/claude-context-optimizer · not measured

PreToolUse

Runs before the agent uses a tool for ^(Agent, Task, Workflow and TaskCreate)$ tool calls, executing ledger_guard_spawn.py via python3. From Rylaa/fable5-opus5-orchestrator.

Rylaa/fable5-opus5-orchestrator · not measured

SessionEnd

Runs when a session ends, executing cleanup_session_cache.py via python3. From Rylaa/fable5-opus5-orchestrator.

Rylaa/fable5-opus5-orchestrator · not measured

SessionStart

Runs when a session starts on startup, resume, clear, compact, startup, startup and resume, executing health-sentinel.sh and run-py.sh via bash with --session-start and --trigger (9 commands). From primeline-ai/evolving-lite.

primeline-ai/evolving-lite · not measured

PreToolUse

Runs before the agent uses a tool for Bash, Write, Edit, Bash, Task, Task and Agent tool calls, executing run-py.sh and context-warning.sh via bash (4 commands). From primeline-ai/evolving-lite.

primeline-ai/evolving-lite · not measured