vault

An archive workflow for completed changes that merges approved specification updates into the main specifications and moves the change to an archive.

In plain words
What is it for?
Use it to check change artifacts and tasks, review specification additions or removals, apply the approved updates, and archive the change.
Why use it?
It prevents unfinished tasks or unreviewed specification differences from disappearing when a change is closed.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/devnomad-byte/techneering/vault
Any agent
npx skills add devnomad-byte/techneering --skill vault
Clone the repo
git clone --depth 1 https://github.com/devnomad-byte/techneering

Made for: Claude Code, Codex.

Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 918 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00028 $0.00918
Opus 5 $0.00014 $0.00459
Sonnet 5 $0.00006 $0.00184
Haiku 4.5 $0.00003 $0.00092

Measured 2d ago against content hash 97cec9666c99, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

vault 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.

skills/vault/SKILL.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Archive a Change

Merge delta specs into main specs and move the change to archive. The final step in the Techneering workflow.

Core Principle

NO ARCHIVE WITHOUT CONFIRMATION.
Every artifact checked. Every delta applied. Every conflict reported.

Steps

Step 1: Select the Change

Same selection logic as tn:forge — auto-detect or ask user.

Always announce: "Archiving change: "

Step 2: Pre-Archive Checks

Artifact completion: Check all artifacts exist (proposal, specs, design, tasks).

Task completion: Read techneering/changes/<name>/tasks.md, count - [ ] (incomplete) vs - [x] (complete).

  • If incomplete tasks: warn user, confirm before proceeding

Step 3: Delta Spec Merge

If delta specs exist at techneering/changes/<name>/specs/:

3a. Read Delta Specs

For each delta spec file, parse the delta blocks:

  • ## ADDED Requirements
  • ## MODIFIED Requirements
  • ## REMOVED Requirements
  • ## RENAMED Requirements
3b. Apply Deltas to Main Specs

Execute operations in this strict order: RENAMED → REMOVED → MODIFIED → ADDED

  • ADDED: Append requirement blocks to the end of the corresponding chapter in the main spec
  • MODIFIED: Replace the matching requirement block in the main spec (match by ### Requirement: <name>)
  • REMOVED: Delete the matching requirement block from the main spec
  • RENAMED: Rename the requirement block header in the main spec (FROM → TO)
3c. Handle Edge Cases
  • MODIFIED/REMOVED target not found in main spec → Skip, log warning
  • ADDED target chapter doesn't exist → Create chapter, then append
  • Conflict (same requirement targeted by multiple deltas) → Stop merge, report to user
3d. Post-Merge Verification
  • Confirm main spec structure is intact
  • No orphaned references
  • No duplicate requirement names

If no delta specs exist, skip merge step.

Step 4: Perform Archive

mkdir -p techneering/archive
mv techneering/changes/<name> techneering/archive/YYYY-MM-DD-<name>

Read the full file on GitHub · 122 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. 2d ago First seen · 122 lines · 28 tokens per session scan A 97cec9666c99

Subscribe to this mod's changes

vault is a skill published in the GitHub repository devnomad-byte/techneering (13 stars, last pushed 2mo ago), licensed MIT. It adds 28 tokens to every session and 918 once invoked, about $0.0001 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 2026-08-30.

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