epac-selection-display

Files (2)

• SKILL.md
• STACK_SOURCE_FIXTURE.json

SKILL.md (first lines)

# epac-selection-display — choose what to show without promoting what it means

## Core boundary

```text
display selection != canon selection
presented claim <= source receipt and its standing
WebMCP handoff != EPAC execution authority
```

The EPAC handle is despecified here. A source repository may use an expansion in
one provisional research instance, but this skill does not freeze that expansion
as EPAC's canonical identity.

At source state `The-Interdependency/stack@5b24db9a7fe40df4b2791e1137ade5de01c78942`,
`research/epac` is a provisional research scaffold with no independent authoritative
source repository. Treat its code, receipts, standings, nonclaims, and `hmmm` as
scoped research evidence, not organization canon. This identity records the source
observed when this workflow was repaired; resolve the current source again on every
use rather than treating it as a permanent inventory.

## Selection record

Fix the following before constructing or displaying anything:

```text
source_repository:
source_commit_or_snapshot:
source_path:
working_tree_state: clean | dirty-with-digests | hmmm
target_kind: element | molecule | receipt | comparison | population | hmmm
target_id:
occurrence_or_instance:
constructor_or_reader:
display_mode: summary | text | svg | receipt-json | comparison | hmmm
audience:
destination: WebMCP handoff | file | response | other
```

The target kinds and display modes are descriptive, not an evergreen API enum.
Admit only targets and renderers that the selected source identity actually
provides.

## Workflow

### 1. Resolve authority and exact source identity

Inspect the current EPAC-owning or incubating repository, its governing
instructions, status documentation, code, tests, and registries. Record a commit
or immutable snapshot. If uncommitted bytes are explicitly in scope, record the
base commit plus content digests for every consumed dirty file; do not present
those bytes as a commit-pinned public artifact.

When the display crosses from EPAC source to a website or MCP consumer, use
`interdependent-work-graph`. EPAC retains research-artifact authority;
`skill-lib` owns this reusable workflow; the website owns presentation. No
semantic, mathematical, empirical, measurement, proof, or canon status transfers
between them.

### 2. Separate content choice from status choice

Selecting `C`, `H2O`, a receipt, or a comparison for display chooses content. It
does not choose EPAC, its constructor, its geometry, or a UCNS option as canonical.

Preserve the source's `selection_effect`, standing, nonclaims, and unresolved
items. If the request asks which candidate should win or whether evidence permits
promotion, pause display selection and load the applicable option-selection and
domain-authority workflow. A display preference cannot ratify a candidate.

### 3. Discover the live target surface

Read the selected source identity rather than relying on a remembered list. For
the current stack scaffold, relevant surfaces may include:

- declared element records and `construct_element_gonol`;
- declared molecule compositions and `construct_molecule`;
- `PublicGonolReceipt` plus its replay function;
- post-construction comparison records; and
- a text or SVG renderer only when it exists in the selected source identity and
  its tests establish the requested projection.

Do not assume a local, untracked, proposed, or previously observed visualizer is
available in a commit-pinned source. If no verified renderer exists, emit the
receipt-backed summary rather than inventing a visual projection. A request that
would require invented geometry is therefore a load-to-refuse case for this skill,
not a reason to bypass it.

### 4. Admit and construct the exact target

Resolve the user-facing target to one exact registered identifier and occurrence.
Reject ambiguous symbols, formulas, aliases, or instances instead of selecting a
familiar default.

Use the source-owned public constructor or reader. Preserve closed participants,
carried options, declared couplings, charge states, and occurrence identity. For
an existing receipt, independently replay it and require the reconstructed digest
to match before calling the display verified.

For preregistered molecular comparison work, construction remains blind to sealed
known-shape labels. Open comparison-only data after construction and keep
`SURVIVED`, `FALSIFIED`, and `UNRESOLVED` distinct from selection or canon status.

### 5. Choose a representation that does not add claims

Use the smallest representation that meets the human request:

- `summary` — identity, standing, digest, structure summary, nonclaims, and
  `hmmm`;
- `text` — a source-provided textual projection plus the summary;
- `svg` — a source-provided deterministic SVG plus equivalent text and accessible
  title/description;
- `receipt-json` — canonical or source-declared receipt serialization; and
- `comparison` — source readouts and terminal standings, visibly labeled as
  post-construction evidence.

A renderer may project only values already carried by the construction, receipt,
or an explicitly pinned upstream law. It must not infer positions, couplings,
Cartesian coordinates, empirical angles, shape labels, or a missing geometric
operation.

From The-Interdependency/skill-lib, MPL-2.0.

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