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/benwu95/prospec/prospec-upgradenpx skills add benwu95/prospec --skill prospec-upgradegit clone --depth 1 https://github.com/benwu95/prospecWrote 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/benwu95/prospec/prospec-upgrade)<a href="https://agentmods.dev/skills/benwu95/prospec/prospec-upgrade"><img src="https://agentmods.dev/badge/skills/benwu95/prospec/prospec-upgrade.svg" alt="Measured on agentmods" 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 | $0.00103 | $0.03995 |
| Opus 5 | $0.00051 | $0.01997 |
| Sonnet 5 | $0.00021 | $0.00799 |
| Haiku 4.5 | $0.00010 | $0.00400 |
Grade A, and why
prospec-upgrade 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.
How it starts
The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prospec Upgrade Skill
Activation
When triggered, briefly describe:
- That
prospec upgradehas recorded the new prospec version in.prospec.yamland re-synced agents, and you'll finish the judgment steps it cannot do deterministically - You'll work through the report's docs inventory (every file
prospec initcreates):prospec upgradehas already back-filled any that were missing, so you offer to update any whose format has drifted from the latest templates and to enrich the docs it just created that need more than a baseline (e.g. the index's real module table) — asking before each change — plus, as a safety net, create any still marked missing; offer to set an artifact language if the project never chose one (a project from a pre-feature CLI); and localize triggers for skills that have none - This is a periodic upgrade flow — re-runnable and self-terminating
Language Policy
Write each generated document in the language the Constitution's Language Policy rule assigns to its path — change artifacts and their archived summaries in the project's artifact language, the trust zone (Knowledge base, Feature Specs, index) in English. One skill run may write both. Keep code, identifiers, technical terms, and git commit messages in English.
CLI Prerequisite (required)
The prospec CLI is a required file for this skill — its deterministic steps call
prospeccommands. Probe BEFORE any other step; there is no manual fallback.
- Run
prospec --version(Bash). - Command not found / not executable → STOP. Ask the user to install the prospec standalone
executable — the one-click installer script from the project README (macOS/Linux
install.sh, Windowsinstall.ps1) or a release binary from GitHub Releases; prospec is NOT published to npm. Then re-run this skill. - Version older than 2.1.0 → STOP. Report the installed vs required version and ask the user to upgrade, then re-run this skill.
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 Changed · +12 lines 5d8af1b0c7b0
- 6d ago First seen · 201 lines · 103 tokens per session scan A 19ac115595f0
prospec-upgrade is a skill published in the GitHub repository benwu95/prospec (5 stars, last pushed yesterday), licensed MIT. It adds 103 tokens to every session and 3,995 once invoked, about $0.0005 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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