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strale: Hook for Claude Code

.claude/settings.json

SessionStart is a hook for Claude Code from strale-io/strale. Its token cost is not measured, scanned A, original, MIT.

A session-start hook that runs a Node.js handoff script when an agent session begins.

In plain words
What is it for?
Use it to orient an agent before it begins work.
Why use it?
It gives the agent the project's current checkout, active work track, and latest handoff status at the start.

Hook for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: reads .claude/ paths.

This is strale-io/strale's own configuration. It tells Claude Code how to work on strale itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything strale configures →

One of 5 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 4 are separate, each on its own page.

not rated 5repo changed 8d ago A scan tokens not measured original MIT
View source ↗ strale-io/strale strale.dev
Reuse

Borrowing it

Nothing to install: this file belongs to strale-io/strale. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/strale-io/strale/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/strale-io/strale

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for SessionStart

README.md
[![agentmods](https://agentmods.dev/badge/hooks/strale-io/strale/session-start/github.svg)](https://agentmods.dev/hooks/strale-io/strale/session-start)
Your own site
<a href="https://agentmods.dev/hooks/strale-io/strale/session-start"><img src="https://agentmods.dev/badge/hooks/strale-io/strale/session-start/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for SessionStart

Your own site · 80×15
<a href="https://agentmods.dev/hooks/strale-io/strale/session-start"><img src="https://agentmods.dev/badge/hooks/strale-io/strale/session-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SessionStart scanned grade A with 1 finding 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 8d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

"command": "node -e \"const c=require('node:child_process');const r=c.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const p=c.spawnSync(process.execPath,[require('node:path').join(r,'.claud
.claude/settings.json · 24 lines

What it actually says

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "node -e \"const c=require('node:child_process');const r=c.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const p=c.spawnSync(process.execPath,[require('node:path').join(r,'.claude/hooks/handoff-session-start.mjs')],{cwd:r,stdio:'inherit'});if(p.error)console.error(p.error.message);process.exit(p.status??1)\"",
          "timeout": 60,
          "statusMessage": "Orienting the session (checkout, active track, last handoff gate)..."
        }
      ]
    },
    {
      "hooks": [
        {
          "type": "command",
          "command": "node -e \"const c=require('node:child_process');const r=c.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const p=c.spawnSync(process.execPath,[require('node:path').join(r,'.claude/scripts/bus.mjs'),'inbox'],{cwd:r,stdio:'inherit',timeout:25000});if(p.error)console.log('[bus] inbox unavailable: '+p.error.message);process.exit(0)\"",
          "timeout": 30,
          "statusMessage": "Reading the bus inbox..."
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 5. Installing the file brings all of them; each is measured and scanned on its own page.

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. 8d ago Changed · +10 lines efea564c1229
  2. 2mo ago Changed c7bfb6d9b994
  3. 2mo ago First seen · 14 lines scan A 66a204c9fa72

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository strale-io/strale (5 stars, last pushed yesterday), 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 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

ai-agentsapieu-ai-actmcpqualitytrust
Related

SessionStart compared with hooks from other repositories

SessionStart next to 6 hooks from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
SessionStartstrale-io/straleHook5yesterdayMITA—Claude Code
PostToolUsesupabase/supabaseHook115kyesterdayApache-2.0A—Claude Code
SessionStartsupabase/supabaseHook115kyesterdayApache-2.0A—Claude Code
SessionStartgoogle-gemini/gemini-cliHook109kyesterdayApache-2.0A—Claude Code
PreToolUseapache/supersetHook75kyesterdayApache-2.0A—Claude Code
PreToolUseanthropics/claude-cookbooksHook54k2d agoMITA—Claude Code
PostToolUseanthropics/claude-plugins-officialHook46kyesterdayApache-2.0A—Claude Code