pre-phase-briefing

pre-phase-briefing is a skill for Claude Code from ZaxbyHub/opencode-swarm. It costs 33 tokens per session (1,527 once invoked), scanned A, original, MIT.

A pre-work checklist for starting a new project phase. It gathers earlier findings and checks that the team is ready to begin.

In plain words
What is it for?
Use it before creating or continuing a project plan, especially when work is split into phases.
Why use it?
It prevents important lessons from earlier work from being missed and exposes missing preparation before work starts.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

Good fit Use it before creating or continuing a project plan, especially when work is split into phases.

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Install with agentmods
npx agentmods add skills/zaxbyhub/opencode-swarm/pre-phase-briefing
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.

Any agent
npx skills add ZaxbyHub/opencode-swarm --skill pre-phase-briefing
Clone the repo
git clone --depth 1 https://github.com/ZaxbyHub/opencode-swarm

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 pre-phase-briefing

README.md
[![agentmods](https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/pre-phase-briefing/github.svg)](https://agentmods.dev/skills/zaxbyhub/opencode-swarm/pre-phase-briefing)
Your own site
<a href="https://agentmods.dev/skills/zaxbyhub/opencode-swarm/pre-phase-briefing"><img src="https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/pre-phase-briefing/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 pre-phase-briefing

Your own site · 80×15
<a href="https://agentmods.dev/skills/zaxbyhub/opencode-swarm/pre-phase-briefing"><img src="https://agentmods.dev/badge/skills/zaxbyhub/opencode-swarm/pre-phase-briefing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,527 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 Memory Poisoning · line 35
    Skill injects content designed to persist in agent memory or context across interactions. Persistent injection can alter agent behavior long after the initial interaction.
    Fix: Do not allow untrusted input to persist in agent memory or context. Validate all content before storing and implement memory isolation between sessions.
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 $0.00033 $0.01527
Opus 5 $0.00016 $0.00763
Sonnet 5 $0.00007 $0.00305
Haiku 4.5 $0.00003 $0.00153

Measured 3d ago against content hash bb855e20dfa0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pre-phase-briefing 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 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.

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.

.claude/skills/pre-phase-briefing/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pre Phase Briefing Protocol

This protocol is loaded on demand by the architect runtime. The architect prompt keeps only activation, action, and hard safety constraints; the full execution details live here.

MODE: PRE-PHASE BRIEFING (Required Before Starting Any Phase)

Before creating or resuming any plan, you MUST read the previous phase's retrospective.

Phase 2+ (continuing a multi-phase project):

  1. Check .swarm/evidence/retro-{N-1}/evidence.json for the previous phase's retrospective
  2. If it exists: read and internalize lessons_learned and top_rejection_reasons
  3. If it does NOT exist: note this as a process gap, but proceed
  4. Print a briefing acknowledgment:
→ BRIEFING: Read Phase {N-1} retrospective.
Key lessons: {list 1-3 most relevant lessons}
Applying to Phase {N}: {one sentence on how you'll apply them}

Phase 1 (starting any new project):

  1. Scan .swarm/evidence/ for any retro-* bundles from prior projects
  2. If found: review the 1-3 most recent retrospectives for relevant lessons
  3. Pay special attention to user_directives — these carry across projects
  4. Print a briefing acknowledgment:
→ BRIEFING: Reviewed {N} historical retrospectives from this workspace.
Relevant lessons: {list applicable lessons}
User directives carried forward: {list any persistent directives}

OR if no historical retros exist:

→ BRIEFING: No historical retrospectives found. Starting fresh.

This briefing is a HARD REQUIREMENT for ALL phases. Skipping it is a process violation.

CODEBASE REALITY CHECK (Required Before Speccing or Planning)

Before any spec generation, plan creation, or plan ingestion begins, the Architect must verify the codebase reality of every item the work references. This runs as asynchronous, fanned-out Explorer lanes by default, joined behind a hard settlement gate — never as a single blocking explorer call, and never as fire-and-forget.

1. Enumerate and partition the references (before dispatch). List every referenced item — file, module, function, API, config surface, and behavioral assumption — named or implied by the spec, the user request, or the plan. Partition them into non-overlapping lane assignments. The partition is the contract: no two lanes may share a reference (this prevents duplicated work), and the union of all lanes must cover every referenced item (this prevents gaps). Under-specified lane boundaries are the dominant fan-out failure mode — be explicit about what each lane owns.

Read the full file on GitHub · 95 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 Changed · +8 lines bb855e20dfa0
  2. 10d ago First seen · 87 lines · 33 tokens per session scan A b0261632bc16

Subscribe to this mod's changes

pre-phase-briefing is a skill published in the GitHub repository ZaxbyHub/opencode-swarm (467 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 1,527 once invoked, about $0.0002 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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