docs(context): remove duplicates and stale chunk references

## Why
CONTEXT.md had grown stale and noisy after the plugin/Gitea pivot.
Working context section duplicated AGENTS.md verbatim; Skills entry
still described the defunct .agents/skills/ direct path; several
glossary entries carried stale "Chunk 4" / "Chunk 6" framing from the
superseded delivery model.

## Impact
- Working context principle removed (live copy is in AGENTS.md)
- Skills glossary is plugin-only (direct path confirmed absent from repo)
- Skill composition, AGENTS.md glossary, and Bidirectional reference
  principle no longer reference chunk numbers

Refs: #15

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

CONTEXT.md

@@ -13,40 +13,10 @@ description: Domain language and decisions for the global AI development config
 ### Instruction file format
 `core/instructions/<topic>.md` files are plain markdown — no frontmatter, no schema. The agent decides when to read each file based on task context and the content index label in `providers/claude-code/CLAUDE.md`. Frontmatter is deferred until there is evidence that agents are loading the wrong files in practice.
 
-### Docs convention
-Workflow artifacts are committed to `docs/` in subdirectories by type. All are tracked as issues.
-
-**Naming:**
-- `docs/notes/<slug>.md` — Exploration Notes
-- `docs/adr/NNNN-<slug>.md` — Architecture Decision Records
-- `docs/spec/<slug>.md` — Living spec files (current deployed state); updated in the same PR as any behavior change
-
-**NNNN** — zero-padded 4-digit sequential number (e.g. `0001`, `0042`). Used only for ADRs (referenced by number). Notes, Specs, and other artifacts are referenced by topic and use a descriptive slug only.
-
-**Other repo-level artifacts:**
-- `LESSONS.md` — long-loop feedback log; patterns observed during development. Three or more entries on the same pattern graduate to the relevant standing file. Updated by the session-handoff skill or by the human directly.
-
-**Slug** — kebab-case, lowercase, max 4–5 words, derived from the document title. No dates (git history carries dates). Examples: `chunk-2-instructions`, `user-auth-flow`, `database-migration`.
-
-**When each is written:** PRDs, ARDs — produced by a grill session before issues are created. ADRs are post-decision — written during or after implementation of an ARD when a hard-to-reverse choice is made. An improvement kick-off produces either a PRD (user-facing scope) or ARD (architectural scope).
-
-### Content chunk QA
-Instruction files and other content chunks cannot be unit tested. Verification is human-executed after implementation: open a new Claude session, exercise the relevant behaviour, and confirm the rules take effect. Each issue includes a short acceptance criteria checklist for the human to run post-commit. Automated QA applies to tooling (scripts, hooks); manual QA applies to agent behaviour and content correctness.
-
-**Instruction quality matters more than instruction presence.** In-context rules (including always-on CLAUDE.md rules) compete with the model's RLHF-trained defaults and can lose — even in a fresh session with the files correctly deployed. Flat one-liner imperatives are the weakest form. Rules that are specific, include a counter-example ("do X, not Y"), or show the boundary condition are significantly more reliable. When a behavioral test fails, the first question is whether the rule is underspecified, not whether in-context instruction-following is inherently unreliable. Do not accept rule violations as an expected baseline — treat them as a signal to strengthen the instruction.
-
-### Conventional commits
-All commits in this repo follow the Conventional Commits specification (`feat:`, `fix:`, `docs:`, `chore:`, `refactor:`, `test:`). Convention is defined in `core/instructions/git.md`. Changelog tooling is a follow-on issue — convention is established first.
-
 ### Repo/gitea as source of truth
-All project state, decisions, context, and working conventions live in this repo ro Gitea. External memory systems should not be used for this project — they create a split-brain risk where cached state diverges from the repo. At the start of every session, read `CLAUDE.md`, `CONTEXT.md`, `docs/VISION.md`, and `docs/spec/overview.md`. Everything needed to orient is here.
+All project state, decisions, context, and working conventions live in this repo or Gitea. External memory systems should not be used for this project — they create a split-brain risk where cached state diverges from the repo. At the start of every session, read `CLAUDE.md`, `CONTEXT.md`, `docs/VISION.md`, and `docs/spec/overview.md`. Everything needed to orient is here.
 
-Before answering any design or architecture question, check for existing decisions: `docs/adr/` (hard architectural decisions) and the resolved rows (marked ✅) in the `docs/ROADMAP.md` open questions table. Never propose an approach without verifying no decision already covers it.
+Before answering any design or architecture question, check for existing decisions: `docs/adr/` (hard architectural decisions).
-
-Before answering any orientation question ("what's next?", "where were we?", "what are we working on?", "what's the status?"), read `docs/ROADMAP.md` and check the handoff section of any open issue files in `docs/issues/` that are relevant to the current chunk. Do not answer from memory or git log alone — the roadmap and open issues are the authoritative source of current status.
-
-### Working context
-This repo is built by a junior developer as a homelab tool intended to scale to professional environments. The agent should challenge ideas and reference industry standards rather than validate assumptions. Explain the why behind decisions — assume the user is learning, not just executing. Flag significant actions before taking them.
 
 ## Glossary
 
@@ -54,25 +24,13 @@ This repo is built by a junior developer as a homelab tool intended to scale to
 A separate product (separate repo) for browsing, editing, and configuring AI development configs through a proper product UI. Git is the persistence layer, invisible to the user. The app is repo-agnostic — it works with any git repo that follows these conventions. This repo is the canonical default content (the official starter). See `docs/VISION.md` for the phased roadmap.
 
 ### Skills
-Reusable slash commands for AI coding tools, defined as `SKILL.md` files following the [Agent Skills open standard](https://agentskills.io). Two deployment paths: (1) **direct** — `.agents/skills/<skill-name>/SKILL.md` in this repo, deployed to `~/.agents/skills/` on install, available immediately as slash commands; (2) **via plugin** — `plugins/<plugin-name>/skills/<skill-name>/SKILL.md`, available only after the plugin is installed (`claude plugin install <name>@<marketplace>`). Providers that don't read `~/.agents/skills/` natively get a symlink adapter declared in `providers/<name>/provider-manifest.sh` (e.g. Claude Code: `~/.claude/skills/ → ~/.agents/skills/`). Skills inside plugins are self-contained — they cannot reference files outside the plugin directory after install-time caching.
+Reusable slash commands for AI coding tools, defined as `SKILL.md` files following the [Agent Skills open standard](https://agentskills.io). Deployed via plugin — `plugins/<plugin-name>/skills/<skill-name>/SKILL.md`, available after the plugin is installed (`claude plugin install <name>@<marketplace>`). Skills are self-contained — they cannot reference files outside the plugin directory after install-time caching.
 
 ### Plugin
 The deployable unit in the plugin marketplace. A plugin bundles one or more skills, agents, hooks, prompts, MCP servers, and optionally a `bin/` directory into a single installable directory. Each plugin has two manifests: `.claude-plugin/plugin.json` (Claude Code) and `plugin.json` at the plugin root (Copilot CLI). Plugins are copied to a cache on install — they cannot reference files outside their own directory. In this repo, plugins live under `plugins/<name>/`. Install a plugin with `claude plugin install <name>@<marketplace>`.
 
-### Plugin scaffold
-The non-content structural parts of a plugin: both manifests (`plugin.json` and `.claude-plugin/plugin.json`), directory skeleton (`skills/`, `agents/`, `hooks/`, `bin/`), and version. Distinct from plugin content (the skills, agents, hooks, and MCP servers inside those directories). Managed by `/plugin-author`; content is managed by content-specific skills (`/skill-author`, `/agent-author`, etc.).
-
-### Version parity
-The convention that the `version` field is always present and identical in both the Copilot CLI manifest (`plugin.json`) and the Claude Code manifest (`.claude-plugin/plugin.json`). Enforced by `/plugin-author` on every create and update. Existing plugins in the repo did not follow this convention before ADR-0016.
-
 ### Plugin marketplace
-A Git repository with a `marketplace.json` manifest listing installable plugins. No backend, registry, or SaaS required — the Git repo is the marketplace. This repo is the `holocron` marketplace. The manifest lives at `.claude-plugin/marketplace.json` (read by both Claude Code and Copilot CLI) and is mirrored to `.github/plugin/marketplace.json`. Register the marketplace with `claude plugin marketplace add <owner>/<repo>`. Plugin names must be kebab-case and not reserved (`anthropic-*`, `claude-*`, `agent-skills`, `official-claude-plugins`). Cross-tool compatibility reference: `plugins/kyberforge/docs/plugin-marketplace-architecture.md`.
+A Git repository with a `marketplace.json` manifest listing installable plugins. No backend, registry, or SaaS required — the Git repo is the marketplace. This repo is the `holocron` marketplace. The manifest lives at `.claude-plugin/marketplace.json` (read by both Claude Code and Copilot CLI) and is mirrored to `.github/plugin/marketplace.json`.
-
-### Content types
-- **Instructions** — stateless rules defining AI behavior. Split into two tiers: (1) universal rules (communication, behavior) live in `AGENTS.md` (provider-agnostic), loaded into every session via the provider adapter (`CLAUDE.md` imports `AGENTS.md`); (2) topic-specific rules (coding, git, testing) live in `core/instructions/<topic>.md` and are read on-demand via `@import` in the Claude Code adapter.
-- **Agents** — role definitions activated on-demand for a specific task.
-- **Workflows** — compositions of skills chained into a larger task. Invokable by agents or humans. Example: `grill-me` → `write-prd` → `break-into-issues` as the canonical design workflow.
-- **Prompts** — shared fragments (system prompt sections, output formats) embedded into multiple skills or workflows.
 
 ### HITL (human-in-the-loop)
 Agent pauses before a consequential action; human approves before execution. Required for irreversible or high-stakes actions (architecture changes, production deployments, security configuration). The agent drafts the change plan and waits — it does not proceed autonomously. Contrast with HOTL.
@@ -85,22 +43,13 @@ The failure mode where RLHF-trained models prioritise approval over accuracy. Tr
 
 ### AGENTS.md
 The provider-agnostic always-on instruction entry point. Two files:
-- **Repo-level `AGENTS.md`** — instructions for agents working inside this repo (structure, key rules, chunk workflow); imported by repo `CLAUDE.md` via `@AGENTS.md`.
+- **Repo-level `AGENTS.md`** — instructions for agents working inside this repo (structure, key rules); imported by repo `CLAUDE.md` via `@AGENTS.md`.
 - **Global `core/AGENTS.md`** — Communication and Behavior rules that apply across all projects; deployed to `~/.agents/AGENTS.md`; imported by `~/.claude/CLAUDE.md` via `@~/.agents/AGENTS.md`.
 
 Contains always-on rules in plain markdown with no provider-specific syntax (no `@import`). Provider-specific files (`CLAUDE.md`) are thin adapters that import the relevant `AGENTS.md` and add only Claude Code-specific syntax. This pattern means a single source of truth can serve multiple providers without duplication. See ADR-0012.
 
 ### Skill composition
-A skill calling another skill by name to delegate a sub-task. The calling skill focuses on the orchestration decision ("when to do X"); the called skill owns the mechanics ("how to do X"). Established compositions: `grill-me` calls `write-adr` when a decision crystallises; `implement-feature` calls `tdd` as its implementation methodology. Composition chains are formalised as workflows in Chunk 4.
+A skill calling another skill by name to delegate a sub-task. The calling skill focuses on the orchestration decision ("when to do X"); the called skill owns the mechanics ("how to do X"). Established compositions: `grill-me` calls `write-adr` when a decision crystallises; `implement-feature` calls `tdd` as its implementation methodology.
-
-<!-- ### Source field
-Field (`source:`) in a skill's `META.md` tracking upstream provenance. An array — supports multiple upstream sources per skill. Each entry: `repo` (GitHub slug, e.g. `mattpocock/skills` — no URL, slug is stable and searchable), `commit` (exact SHA reviewed at adoption), `files` (list of files adopted with inline comments on what was taken), `updated` (date of last upstream review for this entry). Absence of `source:` means self-authored original. Upstream review cadence: per-skill during Chunk 3 (run during source review step); quarterly after roadmap completion (post Chunk 7). Companion field: `references:` (array of URLs or citations) for general external citations — distinct from `source:` which tracks adoptions with commit-level traceability. Both fields live in `META.md`, not in SKILL.md frontmatter. -->
-
-<!-- ### META.md
-A per-skill markdown file containing a single YAML code block with provenance and audit fields: `version`, `updated`, `when`, `source`, and `references`. Lives alongside the SKILL.md in the skill directory (either `.agents/skills/<name>/META.md` or `plugins/<plugin>/skills/<name>/META.md`). Not loaded at agent startup — progressive disclosure principle: name and description route the skill; provenance is only needed for upgrade reviews and audits. Prevents these fields from being scanned on every session start alongside every skill's name and description. The authoritative schema is `META-TEMPLATE.md` in `plugins/kyberforge/skills/write-skill/`. See also: [[Source field]]. -->
-
-### INFO (finding level)
-A third finding level in `skill-audit` reports, below SUGGESTION. Observational — flags something worth noting that is not actionable and does not imply a defect. A skill with only INFO findings is a clean PASS. Counted separately in the result block as `· P info` and never mixed into the FAIL or SUGGESTION counts. Current use: a `references/*.md` file with no `source_keys` when `sources.md` is present; a skill-level source slug not found in the upstream research sources. See ADR-0014.
 
 ### Provider-agnostic issue tracker
 Skills and workflows reference "linked issue" generically rather than a specific provider. Gitea is the canonical issue tracker for this repo (see ADR-0017). "Issue" is the cross-provider term (GitHub, GitLab, Gitea all use it).
@@ -108,26 +57,8 @@ Skills and workflows reference "linked issue" generically rather than a specific
 ### Provenance chain
 The three-stage traceability record linking a skill back to its research inputs: (1) `/research` produces topic docs and a `sources.md` in `plugins/<plugin>/docs/research/docs/<topic>/`; (2) `/skill-author` reads those docs and records which sources informed which skill files in `references/sources.md` (including a `Research doc:` back-pointer to the upstream research file) and `source_keys` frontmatter on `SKILL.md` and `references/*.md`; (3) `skill-audit` validates the chain is complete and internally consistent via `validate-provenance.sh`. A skill with research input but no `references/sources.md`, or with `source_keys` that don't match `references/sources.md` slugs, has a broken provenance chain.
 
-### PRD scope
-A PRD contains: problem statement, goals, explicit non-goals, functional requirements at feature level, success criteria. Never contains: technical approach, implementation steps, or EARS-level detail. HOW is handled downstream: workstream-level technical approach belongs in `architecture-review` (≥2 options, tradeoffs, optional step after `write-prd`); issue-level HOW belongs in issue design notes. Prerequisite: a completed grill session. Validated by inline self-checks in the `write-prd` skill.
-
-### Issue scope
-An issue contains: link to parent PRD (inherited why) + one-line context for this slice, EARS-format acceptance criteria, brownfield delta markers (ADDED/MODIFIED/REMOVED), design notes for non-trivial issues (the issue-level HOW — implementation specifics scoped to this slice only), independently completable task checklist. Prerequisite: parent PRD linked, or explicit standalone justification. No issue may block another open issue. Validated by inline self-checks in `write-issue-spec` and `break-into-issues`.
-
 ### Bidirectional reference principle
-Files that reference other files should declare those references explicitly. The referencing file carries the forward reference (e.g. content index in `CLAUDE.md`, `references:` in frontmatter). The referenced file carries a `when:` field describing when it is loaded. Both sides should agree — divergence signals staleness. The reverse map ("what files reference this file?") is derived by a reference scanner script (Chunk 6 tooling), not maintained manually. This principle applies to instruction files, skills, and workflow documents.
+Files that reference other files should declare those references explicitly. The referencing file carries the forward reference (e.g. content index in `CLAUDE.md`, `references:` in frontmatter). The referenced file carries a `when:` field describing when it is loaded. Both sides should agree — divergence signals staleness. The reverse map ("what files reference this file?") is derived by a reference scanner script, not maintained manually. This principle applies to instruction files, skills, and workflow documents.
-
-### Workstream
-A focused work session oriented around a single goal — a feature, bug, improvement, or exploration. Starts with a grill to produce an artifact (PRD, Bug Brief, ADR, etc.), runs through issue implementation, and closes with docs + commit. Ongoing skills (/diagnose, /prototype, /zoom-out) are invoked ad hoc within a workstream as needed.
 
 ### LESSONS.md
 Long-loop feedback log for patterns observed across sessions. Three or more entries on the same pattern graduate to the relevant standing file (e.g. a coding convention, a governance rule). Updated by the session-handoff skill or directly by the human. Lives at the repo root.
-
-### Workflow artifacts
-Output documents produced by a grill session that scope the work before implementation. All are committed to the repo under `docs/` following the docs convention. Each artifact generates one or more issues but is not itself an issue.
-
-Pre-work (grill output):
-- **PRD** (Product Requirements Document) — for features and improvements with user-facing scope
-
-Post-decision:
-- **ADR** (Architecture Decision Record) — records the decision made, alternatives considered, and rationale. Written during or after implementation of an ARD, not before. Hard-to-reverse decisions only.