continuity-check

continuity-check is a skill for Claude Code, Codex from Ckokoski/AuthorAgent. It costs 18 tokens per session (1,271 once invoked), scanned A, original, MIT.

A manuscript review that looks for contradictions in characters, events, timelines, settings, and names. It checks the story’s internal facts rather than writing style.

In plain words
What is it for?
Use it to scan a full manuscript or selected chapters for continuity problems before revision or publication.
Why use it?
It can reveal details that no longer match earlier chapters, such as a changed eye colour, an impossible travel time, or unexplained knowledge.

Skill for Claude CodeCodex

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 skills/ckokoski/authoragent/continuity-check
Any agent
npx skills add Ckokoski/AuthorAgent --skill continuity-check
Clone the repo
git clone --depth 1 https://github.com/Ckokoski/AuthorAgent

Made for: Claude Code, Codex.

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 continuity-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/ckokoski/authoragent/continuity-check.svg)](https://agentmods.dev/skills/ckokoski/authoragent/continuity-check)
Your own site
<a href="https://agentmods.dev/skills/ckokoski/authoragent/continuity-check"><img src="https://agentmods.dev/badge/skills/ckokoski/authoragent/continuity-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,271 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 $0.00018 $0.01271
Opus 5 $0.00009 $0.00635
Sonnet 5 $0.00004 $0.00254
Haiku 4.5 $0.00002 $0.00127

Measured 5d ago against content hash f8d8c6323950, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

continuity-check 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 5d 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.

skills/author/continuity-check/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Continuity Check Skill

Scan a manuscript (or set of chapters) for internal inconsistencies. This is not a style review — the goal is to catch factual contradictions within the text itself.

What to Check

1. Character Consistency

  • Physical descriptions: Eye color, hair, height, scars, tattoos — flag if described differently in two places.
  • Age and aging: Does a character's stated age match the timeline? Do children age appropriately between scenes set years apart?
  • Abilities and limitations: A character who can't swim in chapter 3 shouldn't be diving in chapter 12 without explanation.
  • Personality and knowledge: Flag moments where a character suddenly knows something they shouldn't, or behaves in a way that contradicts established traits without narrative justification.
  • Relationships: If two characters are introduced as strangers, they shouldn't reference shared history later (unless a reveal is intended).

2. Timeline and Chronology

  • Event order: Do flashbacks, references to past events, and "three days later" markers add up?
  • Travel time: If two cities are a week's ride apart, a character shouldn't arrive the next morning.
  • Day/night and seasons: If a scene starts at dusk, it shouldn't be noon two paragraphs later without a time skip. Winter shouldn't become summer in a single chapter unless time passes.
  • Parallel scenes: When cutting between storylines, do the timelines stay in sync?
  • Dates and ages: Any specific dates, years, or stated ages must remain consistent throughout.

3. Setting and World Details

  • Geography: A river that flows north in one chapter shouldn't flow south in another. Room layouts, building locations, and distances should stay fixed.
  • World rules: If magic costs energy, characters shouldn't cast freely without consequence. Technology, physics, and social rules must stay consistent.
  • Named places: Spelling and descriptions of locations should not change (e.g., "Thornfield Inn" vs "Thornfeld Inn").
  • Climate and environment: Vegetation, weather patterns, and environmental details should match the established region.

Read the full file on GitHub · 105 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. 5d ago First seen · 105 lines · 18 tokens per session scan A f8d8c6323950

Subscribe to this mod's changes

continuity-check is a skill published in the GitHub repository Ckokoski/AuthorAgent (103 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 1,271 once invoked, about $0.0001 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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