reelier: Skill for Claude Code

.claude/skills/reelier-slice/SKILL.md

reelier-slice is a skill for Claude Code from seldonframe/reelier. It costs 54 tokens per session (1,346 once invoked), scanned A, original, MIT.

A development workflow for changing Reelier’s authority ledger and compiled-authority code. It uses measured baselines, tests, independent review, and focused verification.

In plain words
What is it for?
Use it to find the smallest behavior gap, add and review failing tests, implement a focused fix, and compare the result with a baseline.
Why use it?
It reduces the risk of making assumptions about a change that measurements or tests would disprove.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

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

Reuse

Borrowing it

Nothing to install: this file belongs to seldonframe/reelier. 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/seldonframe/reelier/main/.claude/skills/reelier-slice/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/seldonframe/reelier

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 reelier-slice

README.md
[![agentmods](https://agentmods.dev/badge/skills/seldonframe/reelier/reelier-slice.svg)](https://agentmods.dev/skills/seldonframe/reelier/reelier-slice)
Your own site
<a href="https://agentmods.dev/skills/seldonframe/reelier/reelier-slice"><img src="https://agentmods.dev/badge/skills/seldonframe/reelier/reelier-slice.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,346 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 $0.00054 $0.01346
Opus 5 $0.00027 $0.00673
Sonnet 5 $0.00011 $0.00269
Haiku 4.5 $0.00005 $0.00135

Measured 7d ago against content hash 9fcfc54d238a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

reelier-slice 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 7d 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/reelier-slice/SKILL.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reelier slice loop

The authority ledger punishes reasoning that was not measured. In one session four confident estimates were each refuted by running something: "15 missing fault points" (34), "the transitions exist so this is mostly emission" (half needed new mechanism), "opening this gate unlocks 22 tests" (it cost 22), and "this committed pin is the acceptance criterion" (it was unsatisfiable by any implementation). Every one was caught by a measurement that took under two minutes.

The rule: the plan fixes the sequence of gates, never the outcomes. Measure, then decide.

The loop

Run every step. Do not skip 4 or 9 because the change looks small — both have caught defects in two-line diffs.

  1. Measure the baseline. node scripts/baseline-diff.mjs --save on a quiet machine.
  2. Identify the smallest behaviour gap. One point, one boundary, one invariant.
  3. Add RED tests — or identify existing committed ones. Then verify they are satisfiable (below).
  4. Independent RED review (fresh subagents). Non-negotiable; see the lens set.
  5. Implement the smallest change.
  6. Focused tests--test-name-pattern on the affected family.
  7. Compare against baselinenode scripts/baseline-diff.mjs.
  8. Broader suitenpm test when the change touches shared code or exported surface.
  9. Independent GREEN review.
  10. Commit only if shippable. A change that adds public surface and greens nothing is not shippable — revert it and record why.

The gate

Pass count must not drop, and the failing set must gain no names. baseline-diff enforces both.

If it fails, the default is to revert and record the measurement, not to argue with it. A reverted slice with a written finding is a good outcome; it is how the housekeeping-permission question was located.

Verify a pin is satisfiable before treating it as a goal

A test that injects at a fault point absent from src/ fails because its injector never fires. It looks identical to an honest RED pin in a suite run, and no implementation of its subject can turn it green.

Read the full file on GitHub · 111 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. 7d ago First seen · 111 lines · 54 tokens per session scan A 9fcfc54d238a

Subscribe to this mod's changes

reelier-slice is a skill published in the GitHub repository seldonframe/reelier (3 stars, last pushed 13d ago), licensed MIT. It adds 54 tokens to every session and 1,346 once invoked, about $0.0003 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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