A session-start command that reads project context, restores saved work, and shows the current status. It can also inspect documentation, recent changes, or saved differences.

Use it to resume coding sessions, review changes since the last save, update a plan from recent Git commits, or display project status.

It reduces the time spent figuring out where a project and previous work left off, especially when switching machines or handing work to a teammate.

sync — Command by 0xDarkMatter

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 commands/0xdarkmatter/claude-mods/sync

Clone the repo

git clone --depth 1 https://github.com/0xDarkMatter/claude-mods

Or install claude-mods, the plugin that ships this one along with the rest of its 50 skills, 3 commands, 3 agents, 4 hooks.

Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 4,052 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00021	$0.04052
Opus 5	$0.00010	$0.02026
Sonnet 5	$0.00004	$0.00810
Haiku 4.5	$0.00002	$0.00405

Measured 3d ago against content hash 8db48caaffad, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sync 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 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

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.

commands/sync.md · 586 lines

How it starts

The opening of the file, as written. The whole thing — 586 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sync - Session Bootstrap & Restore

Read yourself into this project and restore any saved session state. Fast, direct file reads.

Complements Claude Code's native memory: auto-memory (MEMORY.md) is already loaded and covers learnings; /sync restores what native memory doesn't — saved tasks (via TaskCreate), structured git/PR context, and the previous session ID for --resume bridging — from the git-trackable .claude/session-cache.json, so a handoff works across machines and teammates.

Environment Requirements:

All shell commands use Git Bash syntax (works on Linux/macOS/Windows)
NEVER use Windows cmd syntax (find /c, 2>nul) - causes filesystem scanning on Git Bash
Use wc -l for counting, 2>/dev/null for error suppression

Arguments

$ARGUMENTS

No args: Quick bootstrap + restore saved state + show status
--verbose: Deep bootstrap - also reads all *.md in root + docs/
--diff: Show what changed since last save
--git: Auto-update plan steps from recent commits
--status: Just show status (skip restore prompt)

Architecture

/sync [--verbose|--diff|--git|--status]
    |
    +--> Default (no args): FULL BOOTSTRAP
    |      |
    |      +- Read project context (README, AGENTS, CLAUDE)
    |      +- Read saved state (.claude/session-cache.json)
    |      +- Restore tasks via TaskCreate
    |      +- Resolve plan path (Step 0)
    |      +- Read plan (<plan-path>)
    |      +- Acknowledge memory context (already auto-loaded)
    |      +- Show unified status
    |      +- Suggest next action
    |
    +--> --verbose: DEEP BOOTSTRAP
    |      |
    |      +- Everything above, plus:
    |      +- Read all *.md in project root
    |      +- Read all *.md in docs/
    |
    +--> --diff: CHANGE DETECTION
    |      |
    |      +- Compare current state vs saved state
    |      +- Show new commits since save
    |      +- Show file changes since save
    |
    +--> --git: AUTO-UPDATE FROM COMMITS
    |      |
    |      +- Parse recent git commits
    |      +- Match to plan steps
    |      +- Update step status
    |
    +--> --status: STATUS ONLY
           |
           +- Show current status
           +- Skip restore prompt
           +- Read-only quick view

Read the full file on GitHub · 586 lines

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.

3d ago First seen · 586 lines · 21 tokens per session scan A 8db48caaffad

Subscribe to this mod's changes

sync is a command published in the GitHub repository 0xDarkMatter/claude-mods (32 stars, last pushed 10d ago), licensed MIT. It adds 21 tokens to every session and 4,052 once invoked, about $0.0001 per session on Opus 5. 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.

Memory and context Productivity agent-skills ai-tools anthropic claude claude-code developer-tools

sync

Getting it into your agent

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Sync - Session Bootstrap & Restore

Arguments

Architecture

What this file has done since we first saw it

Other commands, from other repositories

paul:handoff

paul:progress

setup-pm-skills

paul:pause

aliases

setup-rtk