claude-software-factory: Skill for Claude Code

.claude/skills/openspec-sync-specs/SKILL.md

openspec-sync-specs is a skill for Claude Code from genai-jerry/claude-software-factory. It costs 38 tokens per session (2,785 once invoked), scanned A, a copy of openspec-sync-specs, MIT.

A workflow for applying changes from temporary specification files to the main specifications in an OpenSpec repository. OpenSpec is a system for managing software requirements and their changes.

In plain words
What is it for?
It is for reading delta specifications, intelligently merging their updates into main specifications, and editing those files without archiving the change.
Why use it?
It avoids copying an entire changed specification when only selected requirements or scenarios need to be merged into the main version.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is genai-jerry/claude-software-factory's own configuration. It tells Claude Code how to work on claude-software-factory 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 claude-software-factory configures →

Part of the factory plugin — 6 skills, 19 commands, 1 hook shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to genai-jerry/claude-software-factory. 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/genai-jerry/claude-software-factory/main/.claude/skills/openspec-sync-specs/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/genai-jerry/claude-software-factory

Made for: Claude Code.

Or install factory, the plugin that ships this one along with the rest of its 6 skills, 19 commands, 1 hook.

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 openspec-sync-specs

README.md
[![agentmods](https://agentmods.dev/badge/skills/genai-jerry/claude-software-factory/openspec-sync-specs/github.svg)](https://agentmods.dev/skills/genai-jerry/claude-software-factory/openspec-sync-specs)
Your own site
<a href="https://agentmods.dev/skills/genai-jerry/claude-software-factory/openspec-sync-specs"><img src="https://agentmods.dev/badge/skills/genai-jerry/claude-software-factory/openspec-sync-specs/github.svg" alt="Measured on agentmods" height="20"></a>

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 openspec-sync-specs

Your own site · 80×15
<a href="https://agentmods.dev/skills/genai-jerry/claude-software-factory/openspec-sync-specs"><img src="https://agentmods.dev/badge/skills/genai-jerry/claude-software-factory/openspec-sync-specs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,785 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 95% copy Near-identical to another mod 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 $0.00038 $0.02785
Opus 5 $0.00019 $0.01392
Sonnet 5 $0.00008 $0.00557
Haiku 4.5 $0.00004 $0.00279

Measured 9d ago against content hash f8063e4a4cdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

openspec-sync-specs 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 9d 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.

Origin

This is a copy

95% identical to openspec-sync-specs — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/openspec-sync-specs/SKILL.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sync delta specs from a change to main specs.

This is an agent-driven operation - you will read delta specs and directly edit main specs to apply the changes. This allows intelligent merging (e.g., adding a scenario without copying the entire requirement).

Store selection: If the user names a store (a store is a standalone OpenSpec repo registered on this machine) or the work lives in one, run openspec store list --json to discover registered store ids, then pass --store <id> on the commands that read or write specs and changes (new change, status, instructions, list, show, validate, archive, doctor, context, view). Once selected, treat --store <id> as sticky for the rest of the workflow. Every unscoped example of those commands below is shorthand: before running it, append the flag. For example, run openspec status --change "<name>" --json --store "<id>", not the unscoped form shown below. Other commands do not take the flag. Hints printed by commands already carry the flag; keep it on follow-ups. Without a store, commands act on the nearest local openspec/ root.

<capability-path> is the spec directory relative to specs/ (for example, user-auth or identity/user-auth). Preserve the full path from each delta spec when resolving its main spec.

Input: Optionally specify a change name. If omitted, check if it can be inferred from conversation context. If vague or ambiguous you MUST prompt for available changes.

Steps

  1. Select the change

    If a name is provided, use it. Otherwise:

    • Infer from conversation context if the user mentioned a change
    • Auto-select if only one active change exists
    • If ambiguous, run openspec list --json to get available changes and ask the user to select one

    When prompting, show changes that have delta specs (under specs/ directory).

    Always announce: "Using change: " and how to override (e.g., /opsx:sync <other>).

  2. Resolve change context

    Run:

    openspec status --change "<name>" --json
    

    The JSON includes planningHome.root. Main specs live under <planningHome.root>/openspec/specs/ — use that (store-aware) root for every main-spec path below, not a hardcoded repo path. When a store is selected it points at the store, not the current repository.

  3. Find delta specs

    Use artifactPaths.specs.existingOutputPaths from the status JSON as the only source of delta spec paths. If the specs entry is missing or existingOutputPaths is empty, report that there are no delta specs to sync, do not infer them from other artifacts, and stop without requesting artifact instructions or writing a main spec.

    Sync every path in existingOutputPaths unless the caller narrowed the set. A caller narrows it by naming an explicit list of complete entries from existingOutputPaths — copy those absolute values verbatim. Archive does this inline, and a user can too (for example, by selecting the entry ending in /specs/billing/invoices/spec.md). Then sync only the named paths and leave the remaining delta specs untouched: bulk archive excludes a delta whose implementation it could not find, and syncing it anyway would write a main spec the caller deliberately withheld. Carry that narrowed selection through step 4; never widen it back to the full list. If a named path is not in existingOutputPaths, do not sync it — report it and stop, rather than dropping it silently. If the named list is empty, report that there is nothing to sync and stop without writing a main spec.

    Each delta spec file contains sections like:

    • ## ADDED Requirements - New requirements to add
    • ## MODIFIED Requirements - Changes to existing requirements
    • ## REMOVED Requirements - Requirements to remove
    • ## RENAMED Requirements - Requirements to rename (FROM:/TO: format)

    If no delta specs found, inform user and stop.

  4. For each delta spec, apply changes to main specs

Read the full file on GitHub · 263 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. 9d ago First seen · 263 lines · 38 tokens per session scan A f8063e4a4cdf

Subscribe to this mod's changes

openspec-sync-specs is a skill published in the GitHub repository genai-jerry/claude-software-factory (2 stars, last pushed 5d ago), licensed MIT. It adds 38 tokens to every session and 2,785 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to openspec-sync-specs, differing in 5 lines, and is treated as a copy.

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