version: "1.0.1" name: ph description: Reactant tag-only placeholder. Use only when execute or execute-one dispatches an exact <@ph> tag from a document; never activate from ordinary chat or another skill.

Placeholder

Activation Boundary

This is a tag-only worker skill. Use it only after execute or execute-one selects an exact <@ph...> annotation in a target document and hands off its context. Never activate it from ordinary chat, semantic similarity, or any skill other than those two routers. Without that handoff, produce no placeholder and direct the user to add the tag and run a router.

Generate content that fits naturally at the tag position and replace only the tag with it.

Tag

<@ph>
<@ph: hint about what to fill>

Example: We evaluated <@ph: the number of participants> participants.

Input

• File path — the document being processed.
• Surrounding block — the maximal run of non-blank lines containing the

tag; blank lines bound it.

• Prompt (optional) — a hint (for example "a transition sentence").

Default: infer from context.

Workflow

1. Read the text before and after the tag; read the full file if broader

context helps.

1. Generate content that fits naturally at that exact position in tone,

style, and meaning.

1. Write the result back: replace ONLY the <@ph> tag with the generated

text. All surrounding text stays untouched.

Scope Modifiers

<@ph> never modifies surrounding content, so modifiers mainly provide context:

• Protect `<< >>` — context only; never modify. This skill does not

remove protect delimiters outside its own insertion.

• Field `(( ))` — when the tag sits inside a field, generate content that

belongs in that field.

Context References

Double-backtick references in the prompt point to resources that inform the generated content (for example <@ph: a summary based on results.md>). Resolve paths relative to the document's directory unless absolute.

Rules

• The output must read as if it had always been part of the text; keep it

concise and contextually appropriate.

• Replace only the selected annotation. Preserve every unrelated annotation,

<@comment: ...> tag, <@chat-model> block, and contextual literal/example byte-for-byte.

• On any error (for example an unreadable referenced file), fail cleanly:

leave the tag, change nothing, report.