preflight

preflight is a command for Claude Code from raccioly/docguard. It costs 10 tokens per session (441 once invoked), scanned A, original, MIT.

A gate for checking a generated feature specification before planning or creating implementation tasks. It verifies identity, links to earlier intent, registry state, and unsafe paths.

In plain words
What is it for?
Use it after creating spec.md and before task generation to validate the draft and resolve blocking errors.
Why use it?
It stops planning from being based on a missing, duplicated, stale, or unsafe specification.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it after creating spec.md and before task generation to validate the draft and resolve blocking errors.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/raccioly/docguard/preflight
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.

Clone the repo
git clone --depth 1 https://github.com/raccioly/docguard

Made for: Claude Code.

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 preflight

README.md
[![agentmods](https://agentmods.dev/badge/commands/raccioly/docguard/preflight/github.svg)](https://agentmods.dev/commands/raccioly/docguard/preflight)
Your own site
<a href="https://agentmods.dev/commands/raccioly/docguard/preflight"><img src="https://agentmods.dev/badge/commands/raccioly/docguard/preflight/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 preflight

Your own site · 80×15
<a href="https://agentmods.dev/commands/raccioly/docguard/preflight"><img src="https://agentmods.dev/badge/commands/raccioly/docguard/preflight.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 441 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.
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 $0.00010 $0.00441
Opus 5.5 $0.00004 $0.00176
Sonnet 5.5 $0.00002 $0.00088
Haiku 4.5 $0.00001 $0.00044

Measured today against content hash 611fc3b9df44, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

preflight 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 today.

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.

extensions/spec-kit-docguard/commands/preflight.md · 59 lines

What it actually says

DocGuard Generated-Spec Preflight

Run after the specification exists and before planning or task generation. The generated draft is the reviewable artifact that DocGuard can gate.

Running DocGuard

Run docguard from PATH when it is installed. Otherwise run npx --yes [email protected], the release these instructions ship with, in its place. Every docguard … command below means one of the two.

User Input

$ARGUMENTS

Execution

  1. Resolve the current feature's spec.md. Use an explicit path from the user when supplied. Otherwise use the current Spec Kit feature directory; its prerequisite script reports FEATURE_DIR in JSON. Use the platform-specific script under .specify/scripts/ and append /spec.md.

  2. Confirm the draft declares a stable metadata field near the top:

**Spec ID**: `organization.feature-name`

Add a project-scoped lowercase ID when it is missing. Never reuse an ID from the briefing, even when an old spec has moved to Git history.

  1. Run the read-only generated-spec gate:
docguard specs preflight --path <feature-spec.md> --format json
  1. If the result is BLOCKED, stop before task generation. Fix duplicate or missing identity, broken lineage, unsafe paths, or stale registry state, then rerun the same command.

  2. Review overlaps manually. Similarity has low confidence and never blocks by itself. Record a reviewed extends, duplicates, conflictsWith, supersedes, or supersededBy relation only when the underlying intent supports it.

  3. Continue only when the deterministic status is READY. Refresh the registry after the draft is accepted so CI observes its current digest and requirement identities:

docguard specs --write
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. today Changed 611fc3b9df44
  2. 3d ago Changed 79927aefbc2f
  3. 5d ago Changed a62550862194
  4. 6d ago Changed 4cf6fad4ee4b
  5. 15d ago Changed · +6 lines abe2819a5743
  6. 1mo ago First seen · 53 lines · 10 tokens per session scan A e2b53333fa5a

Subscribe to this mod's changes

preflight is a command published in the GitHub repository raccioly/docguard (32 stars, last pushed yesterday), licensed MIT. It adds 10 tokens to every session and 441 once invoked, about $0.0000 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 2026-09-15.