contextd-backup

A command that creates a local archive of selected contextd and Claude configuration files before an upgrade. An archive is a packaged copy that can be used to restore or inspect those files later.

In plain words
What is it for?
Use it before upgrading contextd or related Claude adapters to back up the listed configuration, command, and agent files.
Why use it?
It provides a recovery point before changing configuration or agent-related files. It checks that relevant data exists, asks for confirmation, and verifies that the archive was created and is not empty.

Command for Claude Code

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/philngt/contextd/contextd-backup
Clone the repo
git clone --depth 1 https://github.com/philngt/contextd

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 397 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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00397
Opus 5 $0.00000 $0.00198
Sonnet 5 $0.00000 $0.00079
Haiku 4.5 $0.00000 $0.00040

Measured 2d ago against content hash f5460f07398d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

contextd-backup 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 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.

.claude/commands/contextd-backup.md · 55 lines

What it actually says

/contextd-backup — Backup Workspace

Tạo bản sao lưu local cho contextd config và Claude adapter artifacts trước khi upgrade.

CHECKPOINT 0 — Pre-check

Xác nhận tồn tại ít nhất một trong ~/.contextd/ hoặc ~/.claude/. Nếu không tồn tại: dừng và báo rõ không có dữ liệu để backup.

CHECKPOINT 1 — Scope backup (in trước khi chạy)

In danh sách sẽ backup nếu tồn tại:

  • ~/.contextd/config.json
  • ~/.claude/commands/
  • ~/.claude/agents/

Output backup:

  • ~/.claude/backups/contextd-backup-{timestamp}.tgz (macOS/Linux)
  • ~/.claude/backups/contextd-backup-{timestamp}.zip (Windows PowerShell)

CHECKPOINT 2 — Xác nhận thực thi

Hỏi user xác nhận chạy backup ngay bây giờ. Chỉ chạy khi user đồng ý.

CHECKPOINT 3 — Chạy backup theo OS

  • macOS/Linux: dùng tar -czf
  • Windows PowerShell: dùng Compress-Archive

Luôn tạo ~/.claude/backups/ nếu chưa có.

Compatibility

Legacy ~/.claude/wiki-global.json and ~/.claude/wiki-install-meta.json are included only as migration adapters. Canonical config is ~/.contextd/config.json.

CHECKPOINT 4 — Verify artifact

Sau khi chạy, bắt buộc verify:

  • File backup tồn tại
  • Kích thước file > 0

Nếu fail verify: báo lỗi, không báo thành công.

CHECKPOINT 5 — Kết quả

In:

Backup complete
- File: {backup_path}
- Created at (UTC): {timestamp}
- Next step: chạy /contextd-upgrade
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 · 55 lines · 0 tokens per session scan A f5460f07398d

Subscribe to this mod's changes

contextd-backup is a command published in the GitHub repository philngt/contextd (29 stars, last pushed 13d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 397 tokens. 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.