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.
npx agentmods add skills/andrewbartels1/solidworksmcp-python/openspec-sync-specsnpx skills add andrewbartels1/SolidworksMCP-python --skill openspec-sync-specsgit clone --depth 1 https://github.com/andrewbartels1/SolidworksMCP-pythonWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00038 | $0.02785 |
| Opus 5 | $0.00019 | $0.01392 |
| Sonnet 5 | $0.00008 | $0.00557 |
| Haiku 4.5 | $0.00004 | $0.00279 |
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 2d 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.
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.
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
-
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 --jsonto 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>). -
Resolve change context
Run:
openspec status --change "<name>" --jsonThe 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. -
Find delta specs
Use
artifactPaths.specs.existingOutputPathsfrom the status JSON as the only source of delta spec paths. If thespecsentry is missing orexistingOutputPathsis 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
existingOutputPathsunless the caller narrowed the set. A caller narrows it by naming an explicit list of complete entries fromexistingOutputPaths— 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 inexistingOutputPaths, 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.
-
For each delta spec, apply changes to main specs
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.
- 2d ago First seen · 263 lines · 38 tokens per session scan A f8063e4a4cdf
openspec-sync-specs is a skill published in the GitHub repository andrewbartels1/SolidworksMCP-python (65 stars, last pushed 6d 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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