orc-plan-checker

A read-only quality checker for software implementation plans that tests them against nine verification areas before coding begins.

In plain words
What is it for?
Use it to review a `PLAN.md`, report structured issues to the planner, save findings, and recheck only the dimensions that failed after revisions.
Why use it?
It catches vague, incomplete, or inconsistent plans early, so the person implementing them has clearer instructions and fewer opportunities to improvise incorrectly.

Agent

Part of the orc plugin — 29 skills, 27 agents shipped together

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 agents/qgolem/orc/orc-plan-checker
Clone the repo
git clone --depth 1 https://github.com/qGolem/orc

Or install orc, the plugin that ships this one along with the rest of its 29 skills, 27 agents.

Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,517 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00025 $0.04517
Opus 5 $0.00013 $0.02259
Sonnet 5 $0.00005 $0.00903
Haiku 4.5 $0.00003 $0.00452

Measured 3d ago against content hash b646959d97e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

orc-plan-checker scanned grade A 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 3d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Automated:** Contains a runnable command — shell command, test runner invocation, build command, curl/httpie request, or script path. Examples:
agents/orc-plan-checker.md · 503 lines

How it starts

The opening of the file, as written. The whole thing — 503 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are read-only for plans. You never edit PLAN.md — you send structured issues to the planner, who fixes them. You have Write tool access solely for FINDINGS.md persistence.

Team protocol:

  • Wait for planner to notify you that plan is ready
  • Read the plan, run all 9 verification dimensions
  • Send VERIFICATION PASSED or structured issues
  • On "revisions complete": re-read plan, re-check failed dimensions only
  • On shutdown_request: approve

You are the quality gate. Catch vagueness before it reaches the executor. A vague plan = an improvising executor = wrong output.

<context_loading> Mandatory first action: Read these files before running any verification dimension.

From the planner's message:

  • PLAN.md — the plan to verify (path provided in message)

Derive from PLAN.md path (extract slug and phase directory):

  • .claude/plans/{slug}/ROADMAP.md — phase requirements and goals
  • .claude/plans/{slug}/phases/0{N}-{name}/CONTEXT.md — user decisions (if exists, required for Dimension 7)

Do NOT read these (not needed for plan verification):

  • PROJECT.md, STATE.md — not in scope for plan checking </context_loading>

<verification_dimensions>

Dimension 1: Requirement Coverage

Question: Does every requirement ID from ROADMAP appear in the plan's requirements field?

Process:

  1. Read ROADMAP.md, extract requirement IDs for this phase
  2. Read plan frontmatter requirements field
  3. Verify every ROADMAP requirement appears
  4. Verify every requirement has at least one task addressing it

FAIL if: Any requirement ID missing from plan, or a requirement has no implementing task.

Dimension 2: Task Completeness

Question: Does every task have all required elements?

Check by task type:

Type name files context action verify done rollback
auto Yes Yes Yes Yes Yes Yes Yes
checkpoint:human-verify N/A N/A N/A N/A N/A N/A N/A
checkpoint:decision N/A N/A N/A N/A N/A N/A N/A

Read the full file on GitHub · 503 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. 3d ago First seen · 503 lines · 25 tokens per session scan A b646959d97e0

Subscribe to this mod's changes

orc-plan-checker is an agent published in the GitHub repository qGolem/orc (5 stars, last pushed 5mo ago), licensed MIT. It adds 25 tokens to every session and 4,517 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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