agentmods.dev

SessionStart

A startup hook that runs a shell script when a coding session starts, is cleared, or is compacted.

In plain words
What is it for?
Running session initialization or memory-related setup through the included session-start.sh script.
Why use it?
It automates setup work at these session events, so you do not have to run the same command by hand.

Hook

2 4d ago A scan tokens not measured copy · 63% MIT
View the source file goldenwo/universal-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/goldenwo/universal-memory/session-start
Clone the repo
git clone --depth 1 https://github.com/goldenwo/universal-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 63% copy Near-identical to another mod 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.

Origin

This is a copy

63% identical to SessionStart — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/claude-code/universal-memory/hooks/hooks.json · 14 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "startup|clear|compact",
      "hooks": [
        {
          "type": "command",
          "command": "bash \"${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh\"",
          "async": false
        }
      ]
    }
  ]
}
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 · 14 lines scan A 9e66dd6a99e5

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository goldenwo/universal-memory (2 stars, last pushed 4d 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. It is 63% identical to SessionStart, differing in 3 lines, and is treated as a copy.

Data and AILLMMemory and contextai-memoryclaudeclaude-codecodex-climarkdown
Related

Other hooks, from other repositories

PostToolUse

Runs after a tool call finishes for Edit, Write, MultiEdit, Bash, Edit, Write, MultiEdit, Edit, Write, MultiEdit, Write, Edit and MultiEdit tool calls, executing token-guard.py, claude-path-write-guard.py, claude-integrity-tripwire.py, prompt-only-enforcement-guard.py, enforced-claim-lint.py, wiring-check.py…

assafkip/kipi-system · not measured

SessionStart

Runs when a session starts on startup, startup, resume, clear and compact, executing git-health-check.sh, session-start.py, md-prune.py, lessons-index.py, auto-update.sh, open-loops.py, fleet-board-refresh.py, memory-confidence-surface.py, memory-scores-surface.py, memory-freshness-check.py…

assafkip/kipi-system · not measured

PreToolUse

Runs before the agent uses a tool for Write, Edit, MultiEdit and Bash tool calls, executing token-guard.py, read-first-gate.py, claude-path-write-guard.py and merge-bypass-gate.py via python3 (4 commands). From assafkip/kipi-system.

assafkip/kipi-system · not measured

UserPromptSubmit

Runs when you submit a prompt, before the agent sees it, executing token-guard.py, voice-dna-loader.py and lessons-inject.py via python3 (3 commands). From assafkip/kipi-system.

assafkip/kipi-system · not measured

PostCompact

Runs after the context is compacted, executing post-compact.sh via bash. From assafkip/kipi-system.

assafkip/kipi-system · not measured

PostToolUse

Runs after a tool call finishes for Write tool calls, executing validate.mjs via node. From aayoawoyemi/Ori-Mnemos.

aayoawoyemi/Ori-Mnemos · not measured