ai-asset-pricing: Skill for Claude Code

.claude/skills/sync-context/SKILL.md

sync-context is a skill for Claude Code from Alexander-M-Dickerson/ai-asset-pricing. It costs 45 tokens per session (601 once invoked), scanned A, original, MIT.

A documentation-maintenance tool that finds outdated or mismatched information in a project's AI guidance files. These files include AGENTS.md, CLAUDE.md, and documents under docs/ai/.

In plain words
What is it for?
Use it to detect documentation drift and propose small updates after code changes or when session-start warnings report stale information.
Why use it?
It helps keep agent instructions aligned with the code and documentation without silently rewriting the project's guidance.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is Alexander-M-Dickerson/ai-asset-pricing's own configuration. It tells Claude Code how to work on ai-asset-pricing 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 ai-asset-pricing configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Alexander-M-Dickerson/ai-asset-pricing. 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/Alexander-M-Dickerson/ai-asset-pricing/main/.claude/skills/sync-context/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Alexander-M-Dickerson/ai-asset-pricing

Made for: Claude Code.

Wrote this? Show the measurements

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agentmods badge for sync-context

README.md
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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 sync-context

Your own site · 80×15
<a href="https://agentmods.dev/skills/alexander-m-dickerson/ai-asset-pricing/sync-context"><img src="https://agentmods.dev/badge/skills/alexander-m-dickerson/ai-asset-pricing/sync-context.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 601 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 $0.00045 $0.00601
Opus 5 $0.00023 $0.00300
Sonnet 5 $0.00009 $0.00120
Haiku 4.5 $0.00005 $0.00060

Measured 13d ago against content hash 18bdd98979b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sync-context 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 13d 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/sync-context/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Context Sync

Detect and fix documentation drift across the repo's AI context layer.

Examples

  • /sync-context — scan all mappings and propose updates
  • /sync-context pybondlab — scan only PyBondLab-related mappings

Hard Rules

  • NEVER auto-commit doc updates. Always show the proposed edit and wait for approval.
  • NEVER rewrite entire documents. Propose targeted, minimal edits only.
  • Preserve the voice and judgment in existing docs — update facts, not opinions.
  • If a doc references a file that no longer exists, flag it but do not remove without asking.
  • Do not add new sections or restructure documents unless the drift requires it.

Workflow

1. Run Drift Detection

"<PYTHON>" tools/context_drift.py --json

Parse the JSON output. Each entry has: source (glob), doc (file path), days_stale (float).

If $ARGUMENTS contains a keyword (e.g., pybondlab), filter to entries where either source or doc contains that keyword. Otherwise process all entries.

2. For Each Stale Mapping

For each drift warning, in order:

  1. Read the current doc using the Read tool.

  2. Identify what changed in the source since the doc was last updated:

    git log --oneline --since="<days_stale> days ago" -- <source_files>
    

    Then read the relevant source files to understand the current state.

  3. Compare what the doc says against the current source state. Identify specific lines in the doc that are now inaccurate, incomplete, or misleading.

  4. Propose a targeted edit — show the old text and the proposed replacement. Use the Edit tool format (old_string → new_string). Explain the reason for each change in one sentence.

  5. Wait for user approval before applying each edit.

3. Summary

After processing all mappings, print a summary table:

| Doc                    | Status   | Action                                    |
|------------------------|----------|-------------------------------------------|
| docs/ai/onboarding.md  | Updated  | bootstrap.py uv changes reflected         |
| docs/ai/pybondlab.md   | Current  | no drift detected                         |
| AGENTS.md              | Skipped  | user declined update                      |

Read the full file on GitHub · 78 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. 13d ago First seen · 78 lines · 45 tokens per session scan A 18bdd98979b9

Subscribe to this mod's changes

sync-context is a skill published in the GitHub repository Alexander-M-Dickerson/ai-asset-pricing (59 stars, last pushed 4mo ago), licensed MIT. It adds 45 tokens to every session and 601 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 2026-08-30.

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