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 skills add digital-stoic-org/agent-skills --skill openspec-testgit clone --depth 1 https://github.com/digital-stoic-org/agent-skillsWrote 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.
[](https://agentmods.dev/skills/digital-stoic-org/agent-skills/openspec-test)<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/openspec-test"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/openspec-test/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.
<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/openspec-test"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/openspec-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00026 | $0.01091 |
| Opus 5.5 | $0.00010 | $0.00436 |
| Sonnet 5.5 | $0.00005 | $0.00218 |
| Haiku 4.5 | $0.00003 | $0.00109 |
Grade B, and why
openspec-test scanned grade B with 1 finding 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 1mo 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.
Asks the agent to reveal its instructionsmediumSystem prompt leakage
Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.
| `[manual]` | Display instructions, AskUserQuestion (PASS/FAIL/SKIP) | Human | How it starts
The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OpenSpec Test
Generic verification executor for OpenSpec gates. Follows test.md strategy literally — no improvisation.
flowchart LR
A["Read test.md"] --> B["Validate quality"]
B --> C{"Lazy patterns?"}
C -->|Yes| X["BLOCKED"]
C -->|No| D["Execute verification"]
D --> E["Write logs"]
E --> F["Report result"]
classDef action fill:#C8E6C9,stroke:#388E3C,color:#000
classDef decision fill:#FFF9C4,stroke:#FBC02D,color:#000
classDef fail fill:#FFCDD2,stroke:#D32F2F,color:#000
class A,B,D,E,F action
class C decision
class X fail
⚠️ AskUserQuestion Guard
CRITICAL: After EVERY AskUserQuestion call, check if answers are empty/blank. Known Claude Code bug: outside Plan Mode, AskUserQuestion silently returns empty answers without showing UI.
If answers are empty: DO NOT proceed with assumptions. Instead:
- Output: "⚠️ Questions didn't display (known Claude Code bug outside Plan Mode)."
- Present the options as a numbered text list and ask user to reply with their choice number.
- WAIT for user reply before continuing.
checkpoint
Input: $ARGUMENTS = change-id section-number (e.g., add-feature 3)
Workflow:
- Read
openspec/changes/{change-id}/tasks.md→ find## {section-number}. ... - Read
openspec/changes/{change-id}/test.md→ verification strategy. If missing: warn + offer/openspec-plan tasks {change-id}or skip (garage only). - If test.md has a
**Design**:header → readopenspec/changes/{change-id}/design.mdfor invariants, key flows, and ADRs (informs gate evaluation context) - Validate: Scan for lazy patterns (
grep "keyword",[ -f file ],wc -l,echo). If found → BLOCKED with suggestion for functional verification. - Init logs: Create
test-logs/gate-{n}-{yyyyMMddHHmm}.yaml(raw, append-per-step) +test-logs/gate-{n}-{yyyyMMddHHmm}.md(summary). Timestamp = run start time. See reference.md §Log Formats. - Execute by type tag (default
[auto]):
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 91 lines · 26 tokens per session scan B 58bd4ceaf53e
openspec-test is a skill published in the GitHub repository digital-stoic-org/agent-skills (20 stars, last pushed 12d ago), licensed MIT. It adds 26 tokens to every session and 1,091 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.
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