chronicler

chronicler is a command for coding agents from queelius/claude-anvil. It costs 45 tokens per session (1,591 once invoked), scanned A, original, MIT.

A weekly command that checks recent blog posts for missing cross-posts. Cross-posting means publishing the same content on multiple platforms, with shorter rewrites prepared for platforms such as Bluesky and Mastodon.

In plain words
What is it for?
Use it to review recent posts, detect platform gaps, check platform health, and propose cross-posts to Dev.to, Hashnode, Bluesky, and Mastodon.
Why use it?
It removes the need to remember which recent posts appeared on which services. It also skips drafts and platforms that require manual browser or clipboard work.

Command

Part of the crier plugin — 1 skill, 2 commands, 2 agents, 1 MCP server shipped together

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/queelius/claude-anvil/chronicler
Clone the repo
git clone --depth 1 https://github.com/queelius/claude-anvil

Or install crier, the plugin that ships this one along with the rest of its 1 skill, 2 commands, 2 agents, 1 MCP server.

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 chronicler

README.md
[![agentmods](https://agentmods.dev/badge/commands/queelius/claude-anvil/chronicler.svg)](https://agentmods.dev/commands/queelius/claude-anvil/chronicler)
Your own site
<a href="https://agentmods.dev/commands/queelius/claude-anvil/chronicler"><img src="https://agentmods.dev/badge/commands/queelius/claude-anvil/chronicler.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,591 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 $0.00045 $0.01591
Opus 5 $0.00023 $0.00796
Sonnet 5 $0.00009 $0.00318
Haiku 4.5 $0.00005 $0.00159

Measured 4d ago against content hash 344110ba17e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

chronicler 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 4d 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.

crier/commands/chronicler.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/chronicler

Run when you remember (Friday afternoon, end of month, after a posting spree). The goal is to make "did I cross-post the recent stuff?" a one-prompt workflow.

Scope

Default: posts from the last 2w, all configured API platforms.

Override via argument: /chronicler 1m, /chronicler 3d, /chronicler 6w. Anything crier_search accepts as since.

Configured API platforms are usually devto, hashnode, bluesky, mastodon. Skip platforms in import mode (medium) or paste mode (twitter, threads, linkedin), they need browser/clipboard.

Workflow

1. Scan

Run crier_doctor() first and note any platform in an error state: skip those platforms in the proposal (or flag them as "needs config fix") rather than proposing actions guaranteed to fail at execute time.

Run crier_search(since=<scope>) to get recent files with metadata.

For each file, check status with crier_article(<canonical_url_or_file>). Note which platforms it's missing from.

Also run crier_missing(platforms=[devto, hashnode, bluesky, mastodon]) to catch tracked-but-incomplete posts.

Skip:

  • Files with draft: true in front matter
  • Files already on all 4 configured platforms
  • Files where crier_check reports errors (broken, missing title, etc.)

2. Build proposals

For each candidate post, draft the cross-post plan:

  • Long-form platforms (devto, hashnode): no rewrite needed, use the full body.
  • Short-form platforms (bluesky, mastodon): generate a rewrite. Read the article first (use Read tool on the source file), then write a rewrite that:
    • Leads with the most specific or provocative claim. Not "I wrote a post about X."
    • Stays under the budget: crier appends \n\n<canonical URL> before enforcing the platform limit, so budget = limit minus (URL length + 2). For typical metafunctor URLs that means bluesky ~230 chars (limit 300) and mastodon ~430 (limit 500).
    • Contains no canonical URL: crier appends it automatically.
    • Doesn't say "new blog post" or "check out my latest." Just say the thing.
    • Can be more nuanced on mastodon than bluesky. Bluesky is one punch.

Read the full file on GitHub · 126 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.

  1. 4d ago First seen · 126 lines · 45 tokens per session scan A 344110ba17e8

Subscribe to this mod's changes

chronicler is a command published in the GitHub repository queelius/claude-anvil (2 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 1,591 once invoked, about $0.0002 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 2026-08-31.

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