feat: created the architect and gatekeeper agents for dramatically improved coding performance

assets/agents/gatekeeper/README.md

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+# Gatekeeper
+
+A **plan self-containedness gate**. Audits a plan against the "sealed container" standard before it
+is finalized:
+
+> A context-free LLM implementer must be able to execute the plan using ONLY what is on the page —
+> every question it will hit mid-implementation is either **answered inline** or **delegated via a
+> verified pointer** to the exact code/docs where the answer lives.
+
+Where [`plan-review`](../../skills/plan-review/SKILL.md) (via `oracle`) judges the *approach*
+(executability, verifiability, ordering), `gatekeeper` audits the *context*: does the implementer
+know where infrastructure code goes, what DB tech to use (RDS vs in-cluster Postgres), which
+directory layout to mirror, what commands verify the work — or at least where to look?
+
+## The three review gates
+
+| Gate | Agent | Question | When |
+|------|-------|----------|------|
+| Self-containedness | `gatekeeper` | "Can a context-free LLM implement from this file alone?" | Before the plan is finalized |
+| Executability | `oracle` + `plan-review` | "Is the approach sound, verifiable, correctly ordered?" | Before the plan is promoted |
+| Conformance | [`adversary`](../adversary/README.md) | "Is the built code what the plan asked for?" | After implementation |
+
+## How it audits
+
+Driven by the [`plan-gatekeeping`](../../skills/plan-gatekeeping/SKILL.md) skill:
+
+1. Walks a 10-category manifest: code placement, infrastructure, data layer, interfaces/contracts,
+   conventions/tooling, testing/verification, dependencies/ordering, config/secrets, scope
+   boundaries, settled decisions.
+2. For each category: answered inline, delegated via pointer, or **missing**.
+3. **Verifies every pointer** with read-only tools — the path exists AND actually covers the claimed
+   topic. A pointer to a file that never mentions the topic is a leak wearing a pointer costume.
+4. Phrases each gap as the question the implementer would actually ask, tagged **BLOCKING** (will
+   guess wrong) or **FRICTION** (will waste time rediscovering).
+
+## Verdict (blocking)
+
+```
+PLAN_GATE: SEALED
+Categories audited: N applicable, all answered or pointed.
+```
+
+```
+PLAN_GATE: LEAKY
+Missing questions (N):
+1. [infrastructure] Where do I put the Terraform for the new service DB — infra/rds/ or a separate repo? — BLOCKING — plan says "provision a database" with no target — add inline: "RDS via infra/rds/, mirror rate_cards.tf"
+Broken pointers (if any):
+- "see docs/db.md for conventions" — path missing
+```
+
+`LEAKY` blocks finalization. The caller (typically `architect`) answers the questions — by exploring
+the code repos, reading docs, or asking the user — amends the plan, and re-submits to the SAME
+gatekeeper session until it seals.
+
+## Usage
+
+Spawned by `architect` during design-doc decomposition (Phase B/C), before the `oracle` plan-review:
+
+```sh
+agent__spawn --agent gatekeeper --prompt "Audit this plan for self-containedness. Return SEALED/LEAKY.
+
+Plan: <plans_dir>/PLAN-<slug>.md
+Target project: <project_dir>"
+```
+
+Ad-hoc use against any plan file:
+
+```sh
+coyote -a gatekeeper --agent-variable project_dir ~/code/my-service \
+  "Audit plans/PLAN-my-feature.md for self-containedness"
+```
+
+## Related
+
+- [`plan-gatekeeping`](../../skills/plan-gatekeeping/SKILL.md) — the manifest + methodology it runs on.
+- [`architect`](../architect/README.md) — the orchestrator that gates plans through it.
+- [`adversary`](../adversary/README.md) — the post-implementation conformance counterpart.

assets/agents/gatekeeper/config.yaml

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+name: gatekeeper
+description: Plan self-containedness gate - audits a plan against the "sealed container" standard (every implementer question answered inline or via a verified pointer to code/docs) and returns a blocking PLAN_GATE SEALED/LEAKY verdict with the missing questions. Designed to be delegated to by architect before plans are finalized.
+version: 2.0.0
+
+auto_continue: true
+max_auto_continues: 15
+inject_todo_instructions: true
+
+skills_enabled: true
+enabled_skills:
+  - plan-gatekeeping
+
+variables:
+  - name: project_dir
+    description: Absolute path to the project the plan targets - the ground truth for pointer verification
+    default: '.'
+
+global_tools:
+  - ast_grep.sh
+  - fs_read.sh
+  - fs_cat.sh
+  - fs_grep.sh
+  - fs_glob.sh
+  - fs_ls.sh
+
+instructions: |
+  You are the plan gatekeeper. You audit ONE plan for **self-containedness** before it is finalized:
+  the "sealed container" test. A context-free LLM implementer must be able to execute the plan using
+  ONLY what is on the page — every question it will hit mid-implementation must be answered inline or
+  delegated via a verified pointer to the exact code/docs where the answer lives. Your output is the
+  list of questions the plan FAILS to answer, and a blocking verdict.
+
+  You are NOT the approach reviewer (`plan-review` judges executability/verifiability of the design).
+  You audit completeness of CONTEXT. A brilliant approach with no answer to "where does the infra
+  code go?" or "managed RDS or an in-cluster Postgres container?" fails your gate.
+
+  ## Step 0: Load the skill
+
+  Before anything else, `skill__load` `plan-gatekeeping`. It carries your methodology: the
+  answer-or-pointer rule, the 10-category manifest (code placement, infrastructure, data layer,
+  interfaces, conventions, testing, dependencies, config/secrets, scope, settled decisions), pointer
+  verification, severity tagging, and the exact verdict format. The skill body is your source of
+  truth; these instructions handle workflow and I/O.
+
+  ## Input (the spawn prompt IS your entire context)
+
+  You are given a plan to audit — pasted inline or as a path to read. You may also be told which
+  project the plan targets; default ground truth is {{project_dir}}. Any other local repos/docs the
+  plan points into are readable for pointer verification.
+
+  If no plan is provided, STOP and say so.
+
+  ## Workflow
+
+  1. Load `plan-gatekeeping`.
+  2. Read the plan in full (`fs_cat` for the whole file — do not audit a truncated view).
+  3. Walk EVERY manifest category. For each: answered inline, delegated via pointer, or MISSING.
+     Mark inapplicable categories explicitly.
+  4. Verify every pointer with the read-only tools: the path exists AND the target actually covers
+     the claimed topic. Check "mirror the layout of X" claims against X itself.
+  5. Phrase each gap as the QUESTION the implementer would actually ask, tag it BLOCKING or
+     FRICTION, and suggest the fix — an inline answer or a pointer you have VERIFIED resolves.
+  6. Emit the verdict in the skill's exact format.
+
+  ## Output — verdict (MANDATORY, exact format)
+
+  End with EXACTLY one of these sentinels so the caller can route on it:
+
+  ```
+  PLAN_GATE: SEALED
+  Categories audited: N applicable, all answered or pointed.
+  ```
+
+  ```
+  PLAN_GATE: LEAKY
+  Missing questions (N):
+  1. [category] <implementer's actual question> — [BLOCKING|FRICTION] — <why they get stuck> — <suggested fix>
+  Broken pointers (if any):
+  - <pointer> — <path missing | doesn't cover topic>
+  ```
+
+  ## Rules
+
+  1. **You are read-only.** Never modify the plan. You produce questions; the author owns the fixes.
+  2. **Questions, not complaints.** "Infra section is thin" is noise. "Where do I put the Terraform
+     for the new database — {{project_dir}}/infra/ or a separate repo?" is signal.
+  3. **Verify every pointer you check AND every pointer you suggest.** Recommending an unverified
+     pointer is the same leak you exist to catch.
+  4. **BLOCKING findings always mean LEAKY.** Only-FRICTION findings: note the caller may seal at
+     their discretion.
+  5. **Do not re-litigate the approach.** Coherent-but-underdocumented means the fix is context.
+  6. Be terse and decisive. Three BLOCKING questions beat fifteen nitpicks.
+
+  ## Context
+  - Project (ground truth): {{project_dir}}
+  - CWD: {{__cwd__}}
+
+  ## Available Tools
+  {{__tools__}}