arc: Skill for Claude Code

.claude/skills/inbox-processor/SKILL.md

inbox-processor is a skill for Claude Code from teejayen/arc. It costs 37 tokens per session (495 once invoked), scanned A, original, MIT.

A workflow for sorting files and notes from an inbox folder into more suitable folders, such as projects, resources, or an archive.

In plain words
What is it for?
It helps process an inbox during a weekly review or whenever it fills up. It can move items as they are, reorganize their contents, or ask about unclear destinations.
Why use it?
It removes the need to decide manually where every accumulated item belongs and helps identify old items that may have been forgotten.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is teejayen/arc's own configuration. It tells Claude Code how to work on arc 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 arc configures →

View source ↗ teejayen/arc
Reuse

Borrowing it

Nothing to install: this file belongs to teejayen/arc. 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/teejayen/arc/main/.claude/skills/inbox-processor/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/teejayen/arc

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 inbox-processor

README.md
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Your own site
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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 inbox-processor

Your own site · 80×15
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Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 495 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00037 $0.00495
Opus 5.5 $0.00015 $0.00198
Sonnet 5.5 $0.00007 $0.00099
Haiku 4.5 $0.00004 $0.00049

Measured 2mo ago against content hash 625909e4b9a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

inbox-processor 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 2mo 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/skills/inbox-processor/SKILL.md · 80 lines

What it actually says

Inbox Processor

Sort items from inbox/ to their proper locations.

When to Use

  • Inbox has accumulated items
  • During weekly review
  • User asks to process/clear inbox
  • Session start hook shows stale items

Execution Steps

Step 1: List inbox contents

ls -la inbox/

Note:

  • File ages (flag anything > 7 days as stale)
  • File types and naming patterns
  • Rough categorisation

Step 2: Process each item

For each file, determine destination based on content:

Content Type Destination
Quick thought/idea areas/[relevant]/ or projects/[relevant]/
Decision draft decisions/ (use decision-capture skill)
External link/resource resources/[type]/ (use capture skill)
Project-related projects/[project]/
Area-related areas/[area]/
Historical/completed archive/
Session notes sessions/

Step 3: Move or transform

For each item:

  1. Read the content
  2. Determine if it needs transformation (adding frontmatter, restructuring)
  3. Either move as-is or create proper file in destination
  4. Delete original from inbox/

Step 4: Handle ambiguous items

If destination unclear:

  • Ask the user
  • Or leave in inbox/ with a note about why

Step 5: Report

Summarise what was processed:

## Inbox Processed

**Items moved:** X
- `thought.md` -> `areas/career/notes.md`
- `link.md` -> `resources/bookmarks/tool.md`

**Items archived:** X
- `old-note.md` -> `archive/2025/`

**Items remaining:** X
- `unclear.md` - needs clarification

**Inbox status:** Clear / X items remaining

Step 6: Update focus if needed

If processing revealed something important, update state/focus.md.

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. 2mo ago First seen · 80 lines · 37 tokens per session scan A 625909e4b9a5

Subscribe to this mod's changes

inbox-processor is a skill published in the GitHub repository teejayen/arc (5 stars, last pushed 9mo ago), licensed MIT. It adds 37 tokens to every session and 495 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

Related

inbox-processor compared with skills from other repositories

inbox-processor next to 6 skills from other repositories
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