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prospec: Skill for Claude Code

.agents/skills/prospec-archive/SKILL.md

prospec-archive is a skill for Claude Code, Codex from benwu95/prospec. It costs 69 tokens per session (6,702 once invoked), scanned A, original, MIT.

An archiving tool for completed software changes. It creates a summary, synchronizes requirements with feature specifications, and checks that related project knowledge has been updated.

In plain words
What is it for?
Use it to finalize completed changes, update feature specifications, summarize review and verification results, and synchronize affected knowledge. It requires the Prospec command-line program.
Why use it?
It provides a controlled finish for completed work and helps prevent requirements or documentation from falling out of sync. Archiving is gated by review and verification checks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is benwu95/prospec's own configuration. It tells Claude Code and Codex how to work on prospec 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 prospec configures →

not rated 6repo changed yesterday A scan SkillSpector: warn 69 tokens original MIT
View source ↗ benwu95/prospec benwu95.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to benwu95/prospec. 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/benwu95/prospec/main/.agents/skills/prospec-archive/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/benwu95/prospec

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 prospec-archive

README.md
[![agentmods](https://agentmods.dev/badge/skills/benwu95/prospec/prospec-archive/github.svg)](https://agentmods.dev/skills/benwu95/prospec/prospec-archive)
Your own site
<a href="https://agentmods.dev/skills/benwu95/prospec/prospec-archive"><img src="https://agentmods.dev/badge/skills/benwu95/prospec/prospec-archive/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 prospec-archive

Your own site · 80×15
<a href="https://agentmods.dev/skills/benwu95/prospec/prospec-archive"><img src="https://agentmods.dev/badge/skills/benwu95/prospec/prospec-archive.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,702 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 218
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 5.1 $0.00069 $0.06702
Opus 5.5 $0.00028 $0.02681
Sonnet 5.5 $0.00014 $0.01340
Haiku 4.5 $0.00007 $0.00670

Measured yesterday against content hash 8e886a3d6977, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prospec-archive 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 yesterday.

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.

.agents/skills/prospec-archive/SKILL.md · 260 lines

How it starts

The opening of the file, as written. The whole thing — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prospec Archive Skill

Activation

When triggered, briefly describe:

  • That you'll scan .prospec/changes/ for completed changes
  • The deterministic mutations are executed by prospec archive <name> (previewed with --dry-run); this skill keeps the judgment work — the Entry Gate, the Review & Verify summary, and REQ semantic graduation
  • Affected-module Knowledge is synced at the implement exit; the S/A commit prompt confirms validated content and the Entry Gate re-confirms synchronization (backstop) before archiving

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. Free text you pass the CLI that lands in a change artifact follows the artifact language too, leaving its paths, commands, enum values and the fixed prefixes the CLI matches untranslated. 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 prospec commands. Probe BEFORE any other step; there is no manual fallback.

  1. Run prospec --version (Bash).
  2. 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, Windows install.ps1) or a release binary from GitHub Releases; prospec is NOT published to npm. Then re-run this skill.
  3. Version older than 2.10.0 → STOP. Report the installed vs required version and ask the user to upgrade, then re-run this skill.

Hand-executing a CLI-owned mutation is NEVER the fallback — that re-introduces the nondeterministic serialization this contract exists to remove.

Read the full file on GitHub · 260 lines

Files

What ships with it

5 files 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.

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. yesterday Changed · -1 lines 8e886a3d6977
  2. 2d ago Changed · -3 lines 50276a89a8d0
  3. 3d ago Changed dee766211808
  4. 4d ago Changed 923cd061c295
  5. 9d ago Changed de754f4a64c4
  6. 12d ago Changed 50be531545fa
  7. 13d ago Changed 50e0151ee567
  8. 16d ago Changed e98f2705d3c5
  9. 20d ago Changed · +1 lines d2411dac6e75
  10. 23d ago First seen · 263 lines · 69 tokens per session scan A 8b3d94fe0a3a

Subscribe to this mod's changes

prospec-archive is a skill published in the GitHub repository benwu95/prospec (6 stars, last pushed yesterday), licensed MIT. It adds 69 tokens to every session and 6,702 once invoked, about $0.0003 per session on Opus 5.5. 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.

Project managementagentic-codingai-coding-assistantai-knowledgeprogressive-disclosuresddspec-driven-development
Related

prospec-archive compared with skills from other repositories

prospec-archive next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
prospec-archivebenwu95/prospecSkill6yesterdayMITA69Claude Code, Codex
ospec-goalclawplays/ospecSkill3902mo agoMITA29Codex
ospecclawplays/ospecSkill3902mo agoMITA26Claude Code, Codex
ospec-changeclawplays/ospecSkill3902mo agoMITA18Codex
review-spdzhu1090093659/spec_driven_developSkill9933mo agoMITA72Claude Code
deep-discusszhu1090093659/spec_driven_developSkill9933mo agoMITA181Claude Code
spec-driven-developzhu1090093659/spec_driven_developSkill9933mo agoMITA148Claude Code